What is actinodermatosis?

Actinodermatosis is a chronic skin condition that is attributed to the action of ultraviolet rays on it. It is avoided with sunscreens. Thus, with the use of sunscreen, it is possible to prevent this disease which often causes redness or spots on the skin.

Except in cases of people especially sensitive to light, the treatment is preventive with application of protective products that filter solar radiation. What are your causes? How to recognize it?

Causes of actinodermatosis

Those responsible for the harmful effect of the sun are, above all, the ultraviolet rays that the earth receives. UVB rays, although quantitatively smaller, are very potent and affect the epidermis.

But nevertheless, UVA rays are much more dangerous because they manage to reach the dermis. These radiations constitute the majority of solar ultraviolet rays and are present all year.

Actinodermatosis is a dermatological disease that is attributed to the negative effects of sunlight. Often, it causes redness, spots and signs of premature aging.

Symptoms and manifestations of actinodermatosis

Immediate damage due to UVB rays, associated with prolonged and incorrect sun exposure, They can be erythema, burns and hives. However, its late effects are more complex. Its main responsible are the UVA rays, which penetrate deeply and generate:

  • Dark spots.
  • Keratosis (thickening of the skin).
  • Premature aging.
  • Degradation of membrane phospholipids.

With the passage of time and after successive prolonged exposure to the sun, They can damage cell DNA and develop predisposition to the appearance of melanoma.

Read also: Actinic keratosis: causes, symptoms and treatment

Effects of ultraviolet radiation on the skin

Ultraviolet radiation on the skin causes consequences on it. Some of them are:

Aging of the skin and appearance of wrinkles

People who have spent many years of their lives working outdoors develop a more pronounced skin aging. This is manifested affecting the texture and elasticity of the skin and with a greater formation of wrinkles and spots.

Skin cancer

Sunlight is a risk factor in the appearance of skin cancer, both basal cell and squamous carcinoma and melanoma. 90% of these cancers appear in areas of skin exposed to the sun: the face, neck, ears, hands and forearms.

Allergic reactions

Some people develop allergic skin reactions. In certain cases, These reactions may appear after sun exposure. Symptoms may be red plaques, blisters or hives, located in areas where the sun touches, such as the face, neckline, arms and hands.

How is actinodermatosis prevented?

You have to protect yourself not only from UVB rays, but also from UVA rays. For it, broad spectrum sunscreens are used that restore and maintain hydration and skin barrier functions.

Sun protection can help prevent damage induced by sunlight and reduce the risk of cancer. You should avoid the sun in the central hours of the day and wear appropriate clothing.

The application of sunscreen is one of the most important measures to prevent actinodermatosis. People with delicate skin should choose a protection factor of at least 30.

Hat and umbrella

The appropriate clothing must be of a sufficiently thick fabric, and wide-brimmed hats or caps to protect the facial region. Also, sunglasses should be used to protect the eyes.

Umbrellas and hats protect from UV rays that affect vertically, but not against the diffused light that is produced by reflection on water, sand and other surfaces.

You may also be interested: 8 tips to avoid sunspots

Use of sunscreen

The photoprotectors act by absorbing or reflecting the sun's rays on the skin. The sun protection factor (SPF) is a number that must specify its blocking capacity for ultraviolet rays.

Most are good UVB blockers, which cause redness or solar erythema, and sunburn. But nevertheless, They do not cover UVA so much that it is more associated with skin damage and skin cancer.

Sunscreens must have at least one protection factor 15. People with whiter skin, with light eyes, who burn easily, need higher index protectors, such as 30 or 50.

No photoprotector has a duration of action that exceeds 2 hours, so They should be reapplied frequently. Especially, in conditions of exercise, sweat and baths in the water. In addition, it is convenient to apply them half an hour before sun exposure so that they are really effective.