Severe wrist pain may be caused by strain, injury, tendon inflammation, or nerve compression. You should rest the wrist, avoid repetitive movements, use a cold pack to reduce pain and swelling, and consider a splint for support. Over-the-counter pain relievers such as paracetamol or ibuprofen may help if you have no medical reason to avoid them. If the pain is severe, persistent, or associated with swelling, weakness, or numbness, please consult your doctor promptly.

Numbness in your left hand and joint pain after a car accident may suggest nerve compression, nerve root irritation, joint injury, or a fracture, so it should be promptly evaluated by a doctor. You should avoid taking medicines or injections on your own and instead undergo a proper clinical examination with imaging if required. You may use over-the-counter pain relievers such as paracetamol, diclofenac, or ibuprofen to help with joint pain, provided you have no stomach, kidney, or bleeding problems. Avoid heavy lifting or sudden neck movements and keep the arm in a neutral position until you are examined.