A flare-up is a period of exacerbation, involving severe itch and very inflamed, painful skin.
Some people may experience acute flare-ups alternating with “quiet” phases of mild itch and minor skin inflammation. Even between flare-ups, the skin is often very reactive to temperature changes, stress, or irritant skin products. However, when your skin is already constantly itchy and inflamed, it is difficult to clearly identify flare-ups.
What causes a flare-up in patients with atopic dermatitis?