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Sun-induced skin diseases are usually harmless conditions, such as summer scabies, multiform light rashes, and spring acne. However, some skin diseases caused by solar radiation can be dangerous not only to he alth but also to life. These include skin cancers, of which melanoma is considered the most dangerous. Find out what diseases can be caused by the sun and how to recognize their symptoms.

Sun-induced skin diseasesusually do not endanger he alth, but are only an aesthetic problem. These include summer scabies, multiforme light rashes and spring acne. The sun can also cause phototoxic and photoallergic reactions.

Skin diseases caused by the sun's raysthat are hazardous to your he alth include skin cancers such as actinic keratosis, basal cell carcinoma of the skin, squamous cell carcinoma of the skin, and melanoma.

Contents:

  1. Sun-induced skin diseases - summer scabies
  2. Sun diseases - light eruptions
  3. Sun-induced skin diseases - spring acne
  4. Sun-induced skin diseases - phototoxic and photoallergic reactions
  5. Sun-induced skin diseases - cancer

Sun-induced skin diseases - summer scabies

Summer scabies occurs in the form of small red blisters accompanied by itching. The lesions usually occur on the cleavage, arms, arms and legs, and even on the instep, less often on the face.

Unaesthetic blisters usually appear within 12 hours after the skin is exposed to the sun. As we catch a tan, it diminishes. However, the following year, everything repeats itself, as the scabies tend to recur.

CHECK: How can I protect my child from the sun?

Sun diseases - light eruptions

Multiforme light eruptions (PLEs) are the most common form of sun allergy. Most (about 90%) of people allergic to the sun struggle with them.

Light rashes appear as pink or red spots 2-5 mm in size, blisters or erythema. These symptoms appear a day or two after sun exposureneckline, shoulders, back, hands, thighs and face.

Skin lesions usually disappear on their own within a few days after sun exposure is stopped.

Important

Who should avoid the sun?

In a he althy person, a small dose of UV rays does not cause noticeable changes, but in sensitive people it can seriously damage the skin.

Therefore, patients with vitiligo (as a result of the lack of melanin, the skin is easily burned due to the lack of melanin), metabolic diseases (e.g. porphyria), lupus erythematosus and photodermatosis - diseases associated with photosensitivity, should avoid the sun. Pregnant women should also refrain from sunbathing.

Sun-induced skin diseases - spring acne

Spring acne (LatinMallorca acne ), also known as majorca acne (it was Majorca where this type of acne was first diagnosed), is the result of a combination of solar radiation and some cosmetic ingredients.

This combination causes irritation and inflammation of the sebaceous glands, which is similar to PLE. Spring acne occurs in about 1-2 percent. population. It is most often diagnosed in young and middle-aged women (25-40 years old).

It is worth knowing that under the influence of UV rays, the symptoms of acne and rosacea are exacerbated.

Sun-induced skin diseases - phototoxic and photoallergic reactions

Phototoxic and photoallergic reactions may appear after combining the action of the sun with some ingredients of cosmetics and medicines.

How do such reactions happen? A drug or cosmetic ingredient that does not normally cause sensitization undergoes photoactivation when sunlight penetrates through the skin, resulting in unpleasant skin symptoms. Commonly used photoactive drugs are:

  • antibiotics
  • non-steroidal anti-inflammatory drugs
  • diuretics
  • statins
  • retinoids
  • antifungal medications

GOOD TO KNOW: DRUGS and SUN can cause ALLERGY and BURN

Phototoxic reactionsdiffer from photoallergic reactions in that the body's immune system is not involved in the first reactions. This difference is also visible in the appearance of the changes.

Phototoxic reactions usually look like severe burns that are limited to occurrence on sun-exposed skin.

In contrast, photoallergic reactions resemble atopic dermatitis and can also occur in areas of the skin that have not been in contact withthe sun.

Sun-induced skin diseases - cancer

  • actinic keratosisis a precancerous lesion, i.e. one that can turn into cancer. People with actinic keratosis develop dry, scaly patches of pink, red, or brown skin that are 0.5 to 3 cm wide. The most common sites for lesions are the face (especially the mouth, nose, and forehead), neck, and forearms. Changes are also often seen on the backs of the hands, the edges of the ears, the hairless scalp, and the legs below the knees.
  • basal cell carcinoma of the skinappears as small, slow-growing, shiny, pink, or red bumps. Later in the disease, they may bleed or ulcerate. Changes are usually seen on the face, scalp, ears, hands, arms, and back
  • skin squamous cell carcinomais usually a pink lump that may be covered with hard or scaly skin. Besides, it tends to bleed and ulcerate. The lesions most often occur on the face, neck, lips, ears, hands, arms and legs
  • melanomais the most dangerous of all skin cancers. So, if the current moles change their appearance or new ones appear that are irregular in shape, more than one color, and of a non-standard size (more than 6 mm), you should see your doctor as soon as possible. It's good to know that melanoma can occur anywhere on the body, but is most commonly seen on the back, legs, arms, and face
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How to avoid skin diseases?

To prevent skin diseases:

  • avoid sunbathing between 11.00 and 15.00;
  • gradually increase your exposure to the sun (20 to 30 minutes a day);
  • use sunscreen with a high filter (anti-UVB and anti-UVA);
  • Apply the cream regularly when outside in spring and summer, preferably every two hours.

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Category:

Dermatology