i have a bad itchy rash on my back, face & neck? Started yesterday around my neck. I worked out in the yard this evening and the rash went to my back and started itching the more iIsweat. Now i cannot lay on it or anything. I have taken 4 25mg benedryl one at 7pm and one at 8pm , two more at 9pm. Tryed caladryl, itch cream, alcohol, & aloe with lidocane and tea tree extract. Help please!!!!