Suggest Treatment For Rashes On Clitoris

Im 24 Years old. 5 10. What rash can appear from wearing underwear too long? My panty liner was uncomfortable and i was too embarrassed to fix it. I left it in that uncomfortable position for several hours. When i was finally able to change it there were small tiny bumps in the area where the panty liner was waded up on my clitoral hood. What could this be?