Background. This sensitivity is called photosensitivity. Les médecins pensent qu'il s'agit d'un type de réaction allergique retardée. People with severe or persistent rashes may need treatment with medication. But the rash often recurs each year after the first incident. La photothérapie est un traitement médical dans lequel votre peau est soigneusement exposée à la lumière ultraviolette. Il est fréquent chez les jeunes femmes qui vivent dans des climats modérés (tempérés).Polymorphe signifie prendre différentes formes et éruption signifie éruption cutanée.

‘Polymorphic’ is two words; ‘poly’ means ‘many’, and ‘morphic’ means ‘forms’. So exposure to sunlight through windows or even sunscreen-protected skin may cause a reaction in some people with photosensitivity.Sensitivity to sunlight lessens with repeated exposure in polymorphous light eruption. Mayo Clinic is a nonprofit organization and proceeds from Web advertising help support our mission. These conditions may be the result of an associated sunburn rather than polymorphous light eruption.See your doctor if you have any rash with no obvious cause, such as a known allergy or recent contact with poison ivy.Polymorphous light eruption rashes look similar to rashes caused by other diseases, some of which are serious. Polymorphous light eruption, also known as polymorphic light eruption, is a rash caused by sun exposure in people who have developed sensitivity to sunlight. It results in immune system activity that causes a rash.UV radiation is a wavelength of sunlight in a range too short for the human eye to see.

The rash usually appears as red, tiny bumps or slightly raised patches of skin.Polymorphous light eruption occurs most often during spring and early summer when a person's exposure to sunlight increases. Cleveland Clinic is a non-profit academic medical center. PMLE is characterized by recurrent, abnormal, delayed reactions to sunlight, ranging from erythematous papules, papulovesicles, and plaques to erythema multiforme –like lesions on sunlight-exposed surfaces. Apply a towel dampened with cool tap water to the affected skin, or take a cool bath. It occurs after solar or artificial UV-light exposure and affects only the sun-exposed areas with preference of the V-area of the chest, of arms and forearms, legs, upper part of the back, and rarely the face.

Epstein JH. What can we do to cope and prevent its symptoms? Reapply it every two hours or more often if you're swimming or sweating. Apply it generously 15 minutes before sun exposure.

Dans: Lebwohl MG, Heymann WR, Berth-Jones J, Coulson IH, éds.

A skin rash from sunlight that appears hours or within a day or two of light exposure, and that clears after a few days to a week or two, is a common sign. UVA may even penetrate through most sunscreens. Polymorphous light eruption usually goes away on its own without scarring within 10 days. © 1998-2019 Mayo Foundation for Medical Education and Research (MFMER). This sensitivity is called photosensitivity. The eruption is often pruritic.

These conditions may be the result of an associated sunburn rather than polymorphous light eruption.See your doctor if you have any rash with no obvious cause, such as a known allergy or recent contact with poison ivy.Polymorphous light eruption rashes look similar to rashes caused by other diseases, some of which are serious.

If you can't avoid the sun, use a broad-spectrum sunscreen with an SPF of at least 30 in areas that cannot be protected by clothing. The easiest way to lookup drug information, identify pills, check interactions and set up your own personal medication records. Habituellement, le fournisseur peut diagnostiquer PMLE en fonction de votre description des symptômes.Des crèmes ou des onguents stéroïdes contenant de la vitamine D peuvent être prescrits par votre fournisseur. "Mayo," "Mayo Clinic," "MayoClinic.org," "Mayo Clinic Healthy Living," and the triple-shield Mayo Clinic logo are trademarks of Mayo Foundation for Medical Education and Research.© 1998-2020 Mayo Foundation for Medical Education and Research (MFMER). "Mayo," "Mayo Clinic," "MayoClinic.org," "Mayo Clinic Healthy Living," and the triple-shield Mayo Clinic logo are trademarks of Mayo Foundation for Medical Education and Research.

Treatment is also available to help prevent a rash.Your doctor may suggest phototherapy to prevent seasonal episodes of polymorphous light eruption in people who have experienced disabling signs and symptoms.

Polymorphous light eruption (PMLE), or polymorphic light eruption, is a common acquired cutaneous disorder that is characterized by a pathological response to ultraviolet radiation (UVR). Any use of this site constitutes your agreement to the Terms and Conditions and Privacy Policy linked below. UV light that reaches the earth is divided into two wavelength bands — ultraviolet A (UVA) and ultraviolet B (UVB).A person with photosensitivity can react to both types of UV radiation. Patterson JW. Polymorphous light eruption (PLE) is the commonest immuno-mediated photodermatosis. Polymorphous light eruption on chest. These include ibuprofen (Advil, Motrin IB, others), acetaminophen (Tylenol, others) and naproxen sodium (Aleve, others).We comply with the HONcode standard for trustworthy health information - Phototherapy exposes your skin to small doses of UVA or UVB light, which helps your skin be less sensitive to light. A review of the available information indicates that the polymorphous light eruptions are characterized by a number of clinical and histologic features. If your symptoms are severe, your doctor may prescribe anti-itch medicine (a corticosteroid cream or pill).