Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Allergic reaction!

I have seborrheic dermatitis, as well as allergies to sulfates & frangrances in shampoos & body washes. I tried this on a whim since Jason is "natural." The shampoo felt good in the shower until I started itching from the scalp down. Thank God for my itch relief Curel lotion. I itched all over for 1.5 days! I'm, unfortunately, wary of Jason products now.