Hello, Three days ago I woke up and found this single red welt on my right inner thigh close to my crotch. I didn t think it was dangerous so I shrugged it off. I wore a pair of shorts that day. The next day I found small little blisters on the welt now, a small line of blisters on the left side of the welt and a few medium sized blisters on the right side. It didn t hurt and I asked my grandmother what I should do, she suggested to put Vaseline on the welt and blisters becuase she believed it was just a rash, so I did. Today the welt was now painful to me, the welt was very tender and the blisters now hurt to even touch that had this stinging feeling. I tried Neosporin on it and covered it we a bandaid, thinking it would get better after that. I avoided wearing shorts that day. Hours later, the welt disappear where the area was not red, however the area was still tender. The blisters just stung even more and walking hurt too much because everytime I moved my right leg I would feel this stinging pain from the blisters. Also, if this bit information helps: I have a bit of a sore throat. I really want to know what is going on and I m worried it might be something really serious. I want to know if I should consult my doctor or dermotologist about the situation. If I do not have to go to a clinic or hospital, what kind of steps should I take to treat this? Please help.