Can't twist lids or turn keys
You grip a jar lid and it will not turn. Your hand feels weak, or a sharp jolt near the thumb stops you cold. Keys, door knobs, taps and wet cloths can feel just as hard.
The trouble often sits in two tendons at the base of the thumb. Tendons are cords that join muscle to bone. When the sheath around them swells, any twist can pinch and catch.
It tends to build up over weeks of the same moves. Lifting a baby, gardening, lifting trays, or long hours on a phone can set it off. Doctors call this pattern De Quervain's.
When to see someone
See a doctor if your hand or fingers go numb or tingle, or if they look pale or cold. Go soon if the wrist is red, hot or puffy, if you run a fever, or if you cannot move the thumb at all. Get it checked after a fall or a hard wrench, and if your grip keeps getting weaker over a few weeks or pain wakes you at night.
Below is a list of home and folk remedies people have long used for this kind of thumb and wrist trouble. Each one has an evidence grade, which shows how much good research exists, not a promise of results. Talk with your doctor first, mostly if you are pregnant, nursing, or take other medicine.



