Have got a numb thumb since last two months. some say it is arthritis. coyld you suggest any medication?

Numb thumb: Consider tendonitis ( de Quervains), or nerve compression. What type of work do you do? Do you have DM? injury/ burns? If it is repetitive work using the thumb consider breaking every half hour to relax the thumb. may also consider use intermittently of thumb spica splint. Other rare considerations is MS. See an orthopedist /neurologist this week.

Cause of numbness: needs to be determined. Compression of a nerve is implied. Is this due to bony overgrowth, swelling of soft tissues, is the nerve made more susceptible to injury by an underlying neuropathic process like diabetes or toxic nutritional factors ? Is the problem due to a branch of the median nerve or the radial nerve? No medication helps with numbness unless it reduces swelling, treats infection etc.