If you're experiencing a flare-up, you can use this treatment gel from Dermarest: It has salicylic acid and unique zinc complex, which relieve itching and redness. It will also help even out your skin texture and restore moisture.
And last but not least, using sunscreen is very important, whether you have skin conditions or not. This French pharmacy sunscreen is perfect for those with sensitive skin, not least because it has antioxidants that protect the skin from free radicals. Another bonus? It's not greasy and it won't leave a white cast — so it won't ruin your look.