Hi my name is Bri! I went to a concert with tight leggings and came home to a rash on my buttocks going up my legs at first they were red but now they are smaller and was getting better the but the last three days I feel like its not a rash since the progress has stopped and it's just pimple like red dots that are still there and itchy at times.. If this is not rash what could it be? I've been also using baby powder and baby lotion and if it helps the day before the concert me and my boyfriend had sex if that has anything to do with the rash also