i develop a pimple on my thigh near the groing it just one and is swollen and it hurts to touch could this be herpes, iam a cook and i lived in florida which is really humid and i do sweat a lot on my thighs and sometimes i develop a heat rash and it hurts but when i apply baby powder and helps a lot and doesnt hurt anymore... well before the people show up i did develop a rash a day a go while workin the the pimple appear should i bee worry?