The sun is a powerful anti-inflammatory.

" The proof: the UV rays treat the psoriasis (it is the phototherapy") explains Dr. Philippe Deshayes, dermatologist and consultant for La Roche Posay, one thus notes that the sun has, most of the time a positive effect on the inflamed lesions acne. "

But it's only a respite. The rebound that occurs in the fall makes perfect sense. "To protect against UV, the stratum corneum has thickened, and contributes to the obstruction of the opening of the sebaceous glands.This results in the formation of micro-cysts and comedones that will ignite at the start . "

No deadlock on anti-acne treatments during the summer

It is essential to extend during the sunny season local care that have action on micro-cysts and comedones, real time bombs. This should avoid the rebound effect of September. Adapt, of course, their dosage for better tolerance.

"Warning: some anti-acne can cause sunburns and stains, warns Dr. Michèle Sayag.It is cyclines, benzoyl peroxide, isotretinoin.Better to talk to your doctor before departure. It will probably make you give up cyclins for less photo-sensitizing active ingredients but also anti-inflammatory (such as zinc gluconate) to always apply at night.Also, at the same time to moisturize your skin.

Special sun protection acne skin essential

Today, there are sunscreens specially adapted for acne skin. They are non-fat, non-comedogenic, contain a minimum of fat and their formula often has a complex to regulate and thin the sebum.

It is imperative to choose a high SPF. The dry oils to spray are interesting, because they diffuse a very thin film which avoids to clog the pores, and for the coquettes, there are now high protection sun lightly tinted.

Facial hygiene, an essential routine to prevent rebound

Even if you come back "no time", out of the question to skip the toilet.

"We have to remove the leftover solar product, clean the skin and, ideally, choose a slightly exfoliating product to fight against this thickening of the stratum corneum caused by the sun," says Dr. Sayag. But beware: not every night and no aggressive scrubs that would make the skin even more sensitive to the sun.

Most anti-acne ranges also have references of scrubs or keratolitic lotions adapted. They contain sweet fruit acids, a little salicylic acid and polyethylene balls that gum gently.