Can it be caused by too much sex and/or multiple partners ?
no unless ur partner hve an infection tht he nver told u but the reason y it happen it bcuz ur not keepin their clean most of the itchness and burnin itcuz by not cleanin the area everytime u used the bathroom wipe ur self with warm water take shower as soon as u finish doin watever activity or sports u do it can also cuz by u sweating wear lose undies