Pain in the thumb joint can be seen in different diseases, and due to the different diseases, the treatment will also vary. The causes include tendovaginitis, joint degeneration, etc., as follows: 1. Tendovaginitis: If the pain in the thumb is caused by tendovaginitis, the treatment starts with avoiding too much hand chores, and you can use Furtalin ointment to apply and massage locally on the thumb area. You can also use Aselaxib capsules and meloxicam tablets orally to relieve the pain. If the tendon sheath hyperplasia is more obvious, you can use surgical treatment to remove the tendon sheath. 2. Joint degeneration: If the pain in the thumb joint is caused by joint degeneration, pay attention to the warmth of the joint, and you can take glucosamine sulfate and chondroitin sulfate to nourish the joint cartilage, improve the metabolism of the joint cartilage, and relieve the pain.