i deployed to Afghanistan last March. after about 5 months i started getting red spots on my inner thighs and threwout the rest of my deployment (12 months) it spred to my ankles most concentrated behind my knees. then to my arms most concentrated on the inside of my elbows. when i got home it was gone within a few months but is now coming back. it was explained to me to be a form of pitika. should i worry?