Although there is a specific treatment for their symptoms, if we are strict, the term sun allergy It is not exactly correct. There are many reasons why the sun can cause skin reactions have, as some medicines or diseases. However, the most common form of its appearance is a skin reaction called polymorphic light eruption caused by a skin photosensitivity to ultraviolet rays, ie to sunlight.
What is light polymorphic eruption
Sun allergy It is common in the first months of heat in spring and / or summer, when some areas of the body that are usually covered in winter come into direct contact with sunlight, ie, with UVA and UVB rays. It seems that it is a delayed allergic reaction, even though the cause of polymorphic light eruption is unknown or what is commonly called &# 8220; sun allergy&# 8221 ;.
In some people a polymorphous rash appears, ie, irregular skin lesions which may be in the form of pimples or skin rashes and they appear after a time of sun exposure. Sun allergy can also manifest as protrusions or bumps, redness and scaling of the skin, burning and itching of the affected area or sensitive and even swelling or blisters in severe cases.
Generally, the reaction usually occurs in chest area, back of the wrists and hands, and sometimes in arms, back and legs.
It is considered a chronic disease, although it has been observed in patients with the passage of time the skin may become less sensitive to ultraviolet light exposure and so improve symptoms gradually and naturally.
How long sun allergy
In general, symptoms can last from 1 to 4 days, as long as the sensitive area no contact again with sunlight. However, it varies depending on the person and the degree of allergies you have.
What is the treatment for sun allergy
There is no treatment to cure the allergy, but you can improve symptoms. The ideal is go to a professional dermatologist to assess the most appropriate treatment depending on the degree of allergy, but usually is usually treated with light polymorphic eruption corticosteroid creams topically. Even oral corticosteroids may be prescribed in severe cases.
Some dermatologists also prescribe vitamin supplements, mainly vitamin D, to help improve the skin condition or prepare it with enough time for sun exposure.
Also, in serious cases usually prescribe phototherapy, with the objective of &8220; accustom&8221; the skin to ultraviolet light. It is a medical treatment in which a controlled manner the skin is exposed to UVA and UVB rays prior to the summer months to allow reaches this time much more prepared to direct sunlight.
Prevention to prevent sun allergy
If you have polymorphic eruptions due to exposure to sunlight, it is important to take some precautions to avoid any inconvenience it may cause:
- Do not expose yourself to the sun in the hottest hours where sunlight is at maximum intensity (usually between 11 and 16 hours)
- Use sunscreen. It is one of the best recommendations is important that your sunscreen is made under the recommendations of the European Union which requires that protect from UVA at least one third of the UVB protecting. The more effective and higher factor much better protection.
- Apply sunscreen 30 minutes before sun exposure, to avoid unprotected areas exposed. And, of course, apply every two hours or after baths as recommended by most manufacturers of sunscreens.
- Use hats, sunglasses, t&# 8230; clothes and accessories can protect you from ultraviolet light more than you imagine. For example, you can wear a swimsuit full if you want to enjoy a fantastic day of pool.
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