I have a rach that developed under my armpits, then to under my right breast at ribcage, them to my back, and then to legs behind my knees and top of my feet, I have no fever nor any opther symptom other then itching, and sometimes hurt when i touch them, nothing changed in my diet or anyother things. I first noticed after i got bit by moskitos while working outside, then it looked like lots of moskito bites but they just keep coming out and growing, also i developed small black spots under my armpits.