How-to guide

How to Calm a Skin Flare-Up (Without Making It Worse)

When sensitive skin flares, the instinct to 'treat' it with more products often backfires. Here's how to settle a flare gently and when to get help.

First, do less

A flare is not the moment for new actives or a stronger routine. The fastest way back is usually to simplify, calm the skin, and protect the barrier while it recovers.

The method

  1. Stop the suspects: pause anything new and any actives (acids, retinoids), and go back to a plain fragrance-free cleanser and moisturiser.
  2. Soothe and protect: moisturise generously with a fragrance-free emollient; cool compresses can ease itch.
  3. Resist scratching, which restarts the itch-scratch-damage cycle.
  4. Reintroduce slowly once things settle, one product at a time, to find what set it off.

When to get help

If skin is weeping, looks infected, is very painful, or is not settling, see a GP, pharmacist or dermatologist.

Pin down the trigger afterwards

Once calm, work out what caused it. Logging the flare and checking products against your triggers with ClearaScan helps; it keeps a Reaction Journal for exactly this, plus a shared Care Circle so others can scan for you, and a Trusted Products list. (We co-founded ClearaScan and are not paid to mention it.) This article is educational and is not medical advice.

More how-to guides

How to Check a Product Is Right for You Before You Buy

A two-minute check in the shop or online can save you a flare and a wasted purchase. Here's a simple routine for vetting any product.

How to Choose a Sunscreen for Sensitive Skin

Sunscreen is essential but a common cause of stinging and rashes. Here's how to choose one that protects without triggering reactive skin.

How to Decode a Confusing Ingredient Name

INCI names look like chemistry homework. Here's how to work out what an ingredient actually is, and whether it's one of your triggers.

How to Introduce a New Product Without Triggering a Flare

Adding products one at a time is the simplest way to protect reactive skin and pinpoint problems. Here's the safe way to do it.

A note on this content. The Sensitive Skin Lab publishes general educational information, not medical advice. If you suspect you have an allergy or sensitivity, consult a qualified dermatologist or allergist. Product formulations and labels change without notice, so always check the ingredients on the product itself.