Sure, I Have Had Severe Nose Itching For 2 Weeks,

Sure, I have had severe nose itching for 2 weeks, feels like dust is in my chest, slight cough, my back is itching to the point im scrathing to hard, its rash looking, facial flushing, now have a slight flush rash on upper chest and face feels like there is slight bumps? No pain, not shingles, slight warm throat. actually now it is on my arms. Not sure what is going on?