Hello, I have these big mosquito bite type bumps popping up all over my legs along with little red dots, I measured the big bumps with a ruler and they re all about 3.5 inches around top to bottom side to side. They re hard, extremely itchy, and feverish. I have two on my upper right thigh, one on my right shin, one on the right calf, one behind my left knee, and another on my left ankle. I ve never broke out like this before. I ve tried putting Hydrocortisone on them but it s not helping. And I m not allergic to anything but penicillin, so I m not sure what caused this. They began popping up last night while I was outside drawing, I had felt like I was being bit by mosquitoes, so that s what I intentionally thought they were, until this morning when I saw how big they were and throughout the day the began to itch more and more.