I would first make sure there is no infection that is causing your symptoms. A urinalysis as well as tests for gonorrhea and chlamydia should be done.
If negative, you may want to consider a referral to a urologist or neurologist. There are some systematic diseases that can affect the peripheral nerves (i.e. diabetes) and they should be evaluated for.
As for the when the sensations return - that would depend on the cause of symptoms. I am not aware of medications that an increase the sensitivity of the nerves, however you may want to discuss this issue with a neurologist.
Followup with your personal physician is essential.
This answer is not intended as and does not substitute for medical advice - the information presented is for patient education only. Please see your personal physician for further evaluation of your individual case.
Thanks,
Kevin, M.D.