<s>[INST] doctor i had pilonoidal sinus in my navel a while ago.....bt i got it treated(doctor removed all the hair inside and did the dressing)...it has been 3 months...now rescently i have felt that when i press my navel sown....i feel pain in the right side inside my navel.....is it related to my previous problem...or is it just a pimple...? [/INST] Hi. Thanks for your query. Noted the history of a true colonial sinus of the belly button / naval region, removal of the hair 3 months back. Now there is a pain on the right side of the naval on pressing.; wants to know whether this is related to the previous problem or just a simple pimple. As per the history you have provided, this looks to be the remnant of the previous problem. Colonial sinuses are known to recurrence after some time. I would advise you the following:Get a physical examination done and confirm by high resolution ultrasonography. IF the sinus is still there, you will require to have a re-exploration of the area and removed surgically for a permanent cure. MRI Sonography can help. Till then apply liquid provide iodine locally, take an antibiotic a </s>