Trigger points in the adductor pollicis and opponens pollicis muscles cause aching pain in your thumb, the base of the thumb, and the thumb side of your wrist. Spillover pain may include most of the thumb, webbing, and the fleshy mound at the base of the thumb on the palm.
Your thumb may also feel clumsy. Handwriting, sewing, painting, and buttoning clothes may be difficult.
The pain from adductor pollicis and opponens pollicis trigger points can be easily avoided by reducing stress at your thumb, stretching, and relaxing the muscles of your hand and forearm.
Avoid the use of the strong pincer grip (adduction and opposition) and twisting motions characteristic of weeding by hand, writing with a ballpoint pen, and other fine handwork. Any movements that require strong adduction or opposition of your thumb present a stress overload. Take a break from extended sessions at these activities and perform stretches and relax your hand as often as possible.
You can use pressure self-release for the thumb grip muscles while seated. Using your hand from the unaffected side, begin by using your thumb to gently massage the base of your other thumb. Explore the muscles, note areas that are sorer, and bring your focus to them.