My 12 yo daughter had what looked to be a small insect bite between her butt cheeks more on the right side--we used HCTZ cream on it by itself but it did not go away. Not as much itching, but painful for her to sit and is keeping her up at night. Since it had a white head on it,we sterilized a needle and lanced/scraped it and some pus like stuff came out. She had a little bit of short term relief, but by the next evening the area around the bump is red and there is a hardness under the skin and the pain has gotten worse. We ve been giving her Ibuprofen and she continues to use the HCTZ but she is not sleeping and it does not seem to be healing. She is so embarrassed about it. Should we go to doctor/ER?