Hello. My Husband And I Both Struggle With New Body

Hello. My husband and I both struggle with new body rashes. His case was all over, mostly torso, and has come back after a prednisone dose pack. Mine is just erupting now. For me, it's a raised, red, itchy, large hot spot on my throat. Today, isolated itchy spots on arms, fingers, lower legs. We had been camping in New England. Any chance we were exposed to something borne by ticks or mosquitoes? We are ruling out poison ivy after washing everything several times in strong laundry soaps. The camping trip in Maine was one month ago.