For immediate relief, you can apply an over-the-counter topical NSAID gel, such as diclofenac 1% gel (Voltaren), to the base of your thumb 3 to 4 times daily. For oral relief, temporary use of ibuprofen (if safe for you) or acetaminophen can help reduce pain. However, because you cannot lift weights, you may have thumb arthritis or De Quervain's tenosynovitis. I highly recommend wearing a thumb spica splint to immobilise and rest the joint, and scheduling an appointment with a doctor for an X-ray to get a proper diagnosis. Please avoid heavy lifting in the meantime.

For temporary relief from muscle pain in your neck and hand, you can take over-the-counter pain relievers like Ibuprofen (Advil) or Acetaminophen (Tylenol). Applying a topical pain gel like diclofenac (Voltaren) or using warm compresses can also help. Rest your hand and neck, and avoid repetitive strain. This pain could be due to muscle tension, poor posture, or a pinched nerve. If the pain is severe, does not improve within a few days, or is accompanied by numbness, tingling, or weakness in your arm or hand, please consult a doctor immediately for a proper diagnosis.