Skin flares up when it gets cold

The weather turns cold, and within days your skin is red, rough and itchy. Patches may feel tight, scaly or sore, often on the hands, face, arms or legs. Wind, frost and the first weeks of winter seem to set it off every year.

Cold air holds less water than warm air. Indoor heating dries that air out even more. Your skin loses water fast, and the top layer stiffens and cracks.

This pattern is common with eczema, also called atopic dermatitis, a long-term itchy skin condition. The skin's outer barrier is weaker than most, so it dries out sooner. Hot showers, wool, sweat under thick layers and strong soap can add to a flare.

When to see someone

See a doctor if a patch weeps, crusts yellow, or turns warm and swollen. Fever, or small painful blisters spreading fast, needs care the same day. Also go if the itch keeps you awake, or the patches keep spreading.

Below are remedies people have long used for eczema-prone skin in cold months. Each carries a grade for how much research stands behind it. A grade is not a promise, so check with your doctor before trying something new.

Eczema (Atopic Dermatitis): natural remedies and the evidence behind them

9 options · 2 graded A · 2 graded B · 5 traditional or ungraded

Right now, what's bothering me most about my eczema?

I suspect something deeper — my gut or a nutrient gap — is driving my skin

Vitamin D
Supported by controlled trials (Evidence grade A · No traditional record)
May calm eczema severity from the inside
Why this matches
If your flares keep returning, vitamin D helps regulate skin immunity and inflammation, and topping up a shortfall has been studied for easing eczema severity.
Why try it
Pooled randomized trials suggest vitamin D supplementation can modestly reduce eczema severity, likely by supporting immune balance and the skin barrier; benefit tends to be greater in people who are low in vitamin D.
Dose or use
Follow product labeling; a practitioner can check your vitamin D level and advise an appropriate dose.
Time to results
Typically 6-12 weeks of consistent use
Key study
Systematic review and meta-analysis (2024, PMID 39683522): Vitamin D Supplementation for Treating Atopic Dermatitis in Children and Adults. Eleven randomized controlled trials (686 participants) found vitamin D supplementation significantly reduced eczema severity (SCORAD/EASI) compared with control (SMD -0.41).
Caution
Vitamin D is fat-soluble and can build up; do not exceed recommended doses without medical advice, and check with a practitioner if you have high calcium, kidney stones, or take related medications.
Omega-3 Fatty Acid Deficiency (EPA & DHA)
Centuries of traditional use· Human evidence not yet assessed (Evidence grade not assigned · Traditional use long-standing)Long-standing traditional staple
Low omega-3s can show as dry, eczema-prone skin
Why this matches
If flares keep coming back, a shortfall in omega-3 fats may be part of the picture, since these fats help your skin hold moisture and stay calm.
Why try it
This guide flags dry skin and eczema as signs of low omega-3s; closing the gap through oily fish or supplements may support skin from the inside, though results vary.
Dose or use
Check for a dietary shortfall; food sources include oily fish, and supplements are an option to discuss with a practitioner.
Time to results
Typically 8-12 weeks of consistent intake
Key study
Ungraded: this deficiency guide lists dry skin and eczema among the signs of low omega-3 intake; supplementation for eczema shows mixed clinical results.
Caution
High-dose fish oil can thin the blood; check with a practitioner if you take anticoagulants.
Probiotics (Lactobacillus plantarum P8)
Not yet assessed· We have not reviewed the literature for this one (Evidence grade not assigned · Traditional use recognised)Recognised traditional use
Supports the gut-skin axis from the inside
Why this matches
If your eczema keeps flaring, nurturing your gut may support the gut-skin connection, though this particular strain has not been shown to reduce flares directly.
Why try it
Chosen for its gut-health support and role in the gut-skin axis. Broader probiotic research hints at benefit in atopic dermatitis, but this strain itself has not been trialed for eczema.
Dose or use
Follow product labeling; consult a healthcare practitioner.
Time to results
Typically 4–8 weeks
Key study
Reframed: probiotic supplementation as a class has shown benefit for atopic dermatitis in review evidence, but Lactobacillus plantarum P8 specifically has been studied for gut health, not eczema, and its effect on flares is not confirmed in controlled trials.
Caution
Consult a healthcare practitioner if immunocompromised or before giving to premature infants.

The flares keep coming back and I want to calm my skin from the inside out

Vitamin D
Supported by controlled trials (Evidence grade A · No traditional record)
May calm eczema severity from the inside
Why this matches
If your flares keep returning, vitamin D helps regulate skin immunity and inflammation, and topping up a shortfall has been studied for easing eczema severity.
Why try it
Pooled randomized trials suggest vitamin D supplementation can modestly reduce eczema severity, likely by supporting immune balance and the skin barrier; benefit tends to be greater in people who are low in vitamin D.
Dose or use
Follow product labeling; a practitioner can check your vitamin D level and advise an appropriate dose.
Time to results
Typically 6-12 weeks of consistent use
Key study
Systematic review and meta-analysis (2024, PMID 39683522): Vitamin D Supplementation for Treating Atopic Dermatitis in Children and Adults. Eleven randomized controlled trials (686 participants) found vitamin D supplementation significantly reduced eczema severity (SCORAD/EASI) compared with control (SMD -0.41).
Caution
Vitamin D is fat-soluble and can build up; do not exceed recommended doses without medical advice, and check with a practitioner if you have high calcium, kidney stones, or take related medications.
Niacinamide (Nicotinamide)
Centuries of traditional use· Human evidence not yet assessed (Evidence grade not assigned · Traditional use long-standing)Long-standing traditional staple
Vitamin B3 that supports skin-barrier repair
Why this matches
If your skin keeps flaring, niacinamide works from within to strengthen the skin barrier and dial down the inflammation behind recurring outbreaks.
Why try it
A form of vitamin B3 with antioxidant, anti-inflammatory action; the library lists atopic dermatitis and eczema among its uses, though a specific eczema trial is not cited here.
Dose or use
Follow product labeling; consult a healthcare practitioner for an appropriate dose.
Time to results
Typically 4-8 weeks
Key study
Ungraded for eczema: niacinamide supports skin-barrier repair and is listed for atopic dermatitis, but this specific use is not backed by a cited controlled trial here.
Caution
High doses may cause nausea or, rarely, liver strain; consult a practitioner before long-term use.
Evening Primrose Oil
Centuries of traditional use· Human evidence not yet assessed (Evidence grade not assigned · Traditional use long-standing)Long-standing traditional staple
GLA-rich oil traditionally used for eczema
Why this matches
For flares that keep returning, this GLA-rich oil is a classic inside-out supplement aimed at easing the inflammation and dryness of eczema.
Why try it
Evening primrose oil supplies gamma-linolenic acid, which the body converts to anti-inflammatory compounds; long used for eczema, though modern trials are mixed and unconfirmed.
Dose or use
Follow product labeling; typically taken as softgel capsules with food.
Time to results
Typically 8-12 weeks if it helps
Key study
Traditionally used for eczema; controlled trials of evening primrose oil for atopic dermatitis have shown mixed results and this use is not confirmed.
Caution
May increase bleeding risk and can interact with blood thinners; avoid before surgery and consult a practitioner.

The nighttime itch keeps waking me up — I need my sleep back first

Melatonin
Supported by controlled trials (Evidence grade A · No traditional record)
May help you fall asleep faster
Why this matches
If nighttime itching is stealing your rest, melatonin has been studied for improving both sleep quality and eczema severity together.
Why try it
A systematic review and meta-analysis of three placebo-controlled trials in children with atopic dermatitis found melatonin helped them fall asleep faster; effects on overall skin severity were smaller and less certain.
Dose or use
Follow product labeling; consult a healthcare practitioner.
Time to results
Typically 2–6 weeks
Key study
Systematic review and meta-analysis (2025, PMID 41647028) of three randomized controlled trials in children with atopic dermatitis: melatonin (3-6 mg/day) significantly shortened time to fall asleep and modestly lowered SCORAD, though the skin-severity change was small and total SCORAD was not statistically significant.
Caution
Consult a healthcare practitioner before use in young children or if on other medications.
Oatmeal Cream
Supported by smaller clinical studies (Evidence grade B · Traditional use not yet assessed)
Soothes itch and locks in moisture
Why this matches
For dry, cracked, itchy patches, colloidal oatmeal forms a protective layer that seals in moisture and calms the itch directly on your skin.
Why try it
Colloidal oatmeal is a dermatologist-recommended emollient whose avenanthramides ease itching and inflammation; a double-blind randomized trial in children with mild-to-moderate atopic dermatitis found a 1% colloidal oatmeal cream improved symptoms.
Dose or use
Apply liberally to clean, damp skin at least twice daily and after bathing.
Time to results
Often within days for itch; a few weeks for barrier repair
Key study
Randomized controlled trial (2017, PMID 28366039): a double-blind, randomized, active-controlled study found an over-the-counter 1% colloidal oatmeal cream effective and well tolerated for managing mild-to-moderate atopic dermatitis in children.
Caution
Avoid if you have a known oat or gluten sensitivity; patch test first.

My skin is dry, itchy, and irritated right now — I want direct relief where it hurts

Oatmeal Cream
Supported by smaller clinical studies (Evidence grade B · Traditional use not yet assessed)
Soothes itch and locks in moisture
Why this matches
For dry, cracked, itchy patches, colloidal oatmeal forms a protective layer that seals in moisture and calms the itch directly on your skin.
Why try it
Colloidal oatmeal is a dermatologist-recommended emollient whose avenanthramides ease itching and inflammation; a double-blind randomized trial in children with mild-to-moderate atopic dermatitis found a 1% colloidal oatmeal cream improved symptoms.
Dose or use
Apply liberally to clean, damp skin at least twice daily and after bathing.
Time to results
Often within days for itch; a few weeks for barrier repair
Key study
Randomized controlled trial (2017, PMID 28366039): a double-blind, randomized, active-controlled study found an over-the-counter 1% colloidal oatmeal cream effective and well tolerated for managing mild-to-moderate atopic dermatitis in children.
Caution
Avoid if you have a known oat or gluten sensitivity; patch test first.
Topical Vitamin B12
Supported by smaller clinical studies (Evidence grade B · Traditional use not yet assessed)
May help calm inflammation and itch
Why this matches
When your skin is dry, itchy, and irritated, a B12 cream is applied right where you need it and may help calm inflammation and ease the urge to scratch.
Why try it
A skin-applied form of vitamin B12 thought to lower nitric oxide in the skin; in a randomized, placebo-controlled multicentre trial in atopic dermatitis, the B12-treated skin improved significantly more than placebo-treated skin.
Dose or use
Apply a thin layer to affected skin twice daily, or as directed on the product.
Time to results
Typically 2-8 weeks
Key study
Randomized controlled trial (2004, PMID 15149512): in a prospective, placebo-controlled, phase III multicentre trial of 49 patients with atopic dermatitis, a topical vitamin B12 cream applied twice daily for 8 weeks reduced disease severity significantly more than placebo on the treated side.
Caution
For external use only; do a small patch test first and stop if irritation develops.
LI11 (Quchi) - Large Intestine 11
Centuries of traditional use· Human evidence not yet assessed (Evidence grade not assigned · Traditional use long-standing)Long-standing traditional staple
Acupressure point to calm inflamed skin
Why this matches
When you want to soothe irritated skin without another product, pressing this anti-inflammatory point offers a simple, drug-free way to help settle a flare.
Why try it
In Traditional Chinese Medicine, LI11 is a go-to point for inflammatory skin conditions like eczema. This reflects traditional use, not a confirmed clinical treatment.
Dose or use
Find it at the outer end of the elbow crease when the arm is bent; press firmly for 1-2 minutes on each arm, breathing slowly.
Time to results
Varies; some feel calmer within minutes, others with regular practice
Key study
Traditionally used in acupressure for eczema and inflammatory skin conditions; this specific use has not been confirmed in controlled clinical trials.
Caution
Avoid pressing over broken, infected, or actively inflamed skin at the point itself.

Evidence grades describe the strength of published research for Eczema (Atopic Dermatitis), not a promise of results. Nothing here is medical advice — talk to your clinician before starting anything, especially alongside prescription medication.