Sun rash, also known as a sun allergy, describes several skin conditions causing an itchy rash after sun or UV exposure. The most common type is polymorphous light eruption. Some individuals may also inherit a predisposition to sun allergies.
Understanding Sun Rash
Sun rash isn't a single condition but rather an umbrella term covering various reactions to ultraviolet (UV) radiation from the sun. These reactions manifest as itchy rashes on sun-exposed skin. The most frequently occurring type is polymorphous light eruption. A genetic component may also play a role in some cases, meaning some people are inherently more susceptible.
Types and Causes
While the exact causes vary, the common factor is exposure to UV light triggering an immune response. This leads to inflammation and the characteristic rash. Hereditary factors can influence susceptibility.
Symptoms
The primary symptom is an itchy rash appearing on sun-exposed areas. The rash can present in various forms, depending on the specific type of sun allergy.
Treatment
Treatment focuses on managing symptoms and preventing further exposure. This often involves:
- Avoiding prolonged sun exposure: Using sunscreen with a high SPF is crucial.
- Cooling compresses: To soothe the itching.
- Over-the-counter medications: Such as antihistamines or hydrocortisone cream. In some cases, a doctor may prescribe stronger medications.
