There is no quickest fix for numbness in the right thumb; the main focus is on treating the specific trigger. Common causes include trauma, tenosynovitis, peripheral neuritis and so on. In terms of treatment, the main thing is to apply the relevant drugs to treat the cause. 1. Trauma: If the radial nerve in the arm area is damaged due to trauma, causing numbness of the right thumb. You should go to the hospital in time, and the doctor should immobilize the joints near the injury site. Nerve electrical stimulation therapy can be used to facilitate the recovery of the nerve. In addition, it is necessary to apply nutritive nerve drugs, such as methylcobalamin, B vitamins and so on. 2. Tenosynovitis: If the numbness of the right thumb is caused by tenosynovitis of the right thumb, the main application of ibuprofen, acetaminophen and other non-steroidal anti-inflammatory analgesic drugs to reduce the pain symptoms. Combined with the application of glucocorticoids such as prednisolone acetate and dexamethasone to reduce inflammatory exudation. If necessary, tenotomy and decompression surgery should be carried out, so that the adherent tendons and tendon sheaths can be loosened. 3. Peripheral neuritis: If the numbness of the right thumb is caused by peripheral neuritis, immunomodulatory drugs such as dexamethasone and hydrocortisone can be applied, together with the application of B vitamins, methylcobalamin and other neurotrophic drugs, to promote the recovery of the damaged nerves, and to improve the above symptoms. If the symptoms of numbness in the right thumb persist and cannot be relieved, the patient should consult a doctor as soon as possible to diagnose the cause of the numbness and then receive treatment under the direction of the doctor. If medication is needed, it should be taken in strict accordance with the doctor’s instructions, and should not be taken blindly by oneself, so as to avoid adverse consequences.