Hello everyone,thanks for taking a look, hope you can shed some light on this situation.Whenever i start to jog (or walk for a prolonged period of time) my legs start to itch almost unbearably. I have read other postings suggesting the heat as a factor. But my work is sometimes very physical and in an environment where the temperature often exceeds 120 degrees F, and i often sweat during work.Sometimes i'll have some itching around my face,and small (not tiny)bumps with pustules appear.Other times i sweat and there's nothing.I'm getting older and i want to start jogging, but the itching, the darned itching.IT starts even before i have broken a sweat(jogging),and is usually just my legs, down to my ankles.IF i push on, then i start itching all over.The itchy legs is only during jogging,the itchy face is when i sweat ,and i do have acne.I saw a posting about a saliva test. Sometimes when i've brushed my teeth and used mouthwash before bed, i'll wake up with my saliva being of a strange texture or appearance.Thanks for all responces,.......x.....s.