Re itchy bumps: ET jacks up histamine levels. I have more skin irritation, asthma, and rosacea flare-ups than I did when I was younger. Adhesive from non-latex bandaids can cause itching and even blistering if left on too long. Docs just wave this away as aging skin. It has helped a lot to replace laundry and personal care products with hypoallergenic alternatives, slather on moisurizer, and keep the Benadryl and inhalers handy.