I have a small blister near inguinal region . In the beginning i don't have any pain or symptoms . I am obese too. Last month i walked more so the blister bursted nd i found some pus nd i met a gynecologist. She gave me antibiotic nd pain killer nd tried to squeeze out the pus nd gave betardin powder for local application. I completed antibiotic dose twice but still the blister is there nd some fluid is coming out. What can it be nd what shall I do