Hi Jim, I have allergies. I took allergy shots for five years. They helped me tremendously. There are medications such as Allegra, Claritin that work wonderfully. But I don't understand the rash as you describe. I think something else is up. See an alergist, they may help. You may be over doing it in exercise if you have to work at your health, do you exercise, how many hours do you work. Also sounds like your immune system is very low. Check into some immune boosters. I hope you feel better, Badgirl