Well, hereâs the thing: your old iPhone or Android device is simply brimming with all kinds of personal data, like usernames, passwords, phone numbers, photos, email â¦ you name it. 1  Just tap Erase All Content and Settings to wipe your iPhone's memory clean.
Irritant contact dermatitis. Irritant contact dermatitis occurs when your skin comes into direct contact with a substance that damages the outer layer of your skin, causing redness, itching, and a burning or stinging sensation.
Retinol Side Effects. While it is important to ask your dermatologist, âWhat does retinol do,â it is also vital to understand its side effects. Retinol can cause stinging at the site of application, an increase in sensitivity to the sun, peeling, redness, and flaking.