I think i sprained my thumb 7 weeks ago. its still very painful. should it be treated or do i just keep resting it.

Depends: If you've had your thumb x-rayed and the x-rays are neg. For a fracture and there are no instabilities of any of the thumb joints....Then i would begin to increase your activities using your thumb more and more... A soft tissue injury to the small joints of the thumb(sprain) can take 3-6 mons. To be totally pain free.... If there is no improvement within a few weeks....See a hand surgeon.