Symptoms of skin allergy to ultraviolet rays

In summer, female friends are always worried about getting tanned, so they will make all sun protection preparations before going out. But if you think that sun protection is only necessary in summer, you are wrong. What we are protecting against is ultraviolet rays. As long as there is sunlight, there will be ultraviolet rays, so sun protection should be applied all year round. Some people experience itchy skin and red spots when exposed to the sun. These are symptoms of skin allergy to ultraviolet rays.

Symptoms of UV allergy

Ultraviolet allergy is also called "solar dermatitis", which usually manifests as itching in the areas exposed to the sun. The longer the exposure to the sun, the more severe the allergic reaction will be, and the skin itching will last for 24 to 48 hours, or even longer. People with allergies will experience redness, burning, heat and pain on the irradiated skin. At the same time, it will cause a sharp increase in free radicals in the body, causing wrinkles, pigmentation and cell damage on the local skin. In severe cases, it may change the immune system. Symptoms of ultraviolet allergy often manifest as erythema, papules, wheals or blister-like rashes on the face, neck, forearms, sides of the body, back of the hands and other easily exposed parts. The symptoms worsen after exposure.

Symptoms of first-degree ultraviolet allergy: diffuse erythema appears on local skin after sun exposure.

Symptoms of second-degree ultraviolet allergy: local skin redness and swelling, followed by blisters or even bullae, with tense blister walls and light yellow blister fluid. Subjective symptoms include burning or itching. After the blisters burst, they become erosive and soon dry and form scabs, leaving behind pigmentation. Very severe UV allergy may be accompanied by systemic symptoms such as fever, headache, palpitations, fatigue, nausea, and vomiting.

Causes of UV allergy

Many women are afraid of being in the sun for fear of developing UV allergies. In fact, there are many causes of UV allergy. Sunlight is the direct cause, and there are many other causes.

1. Sunlight exposure. If you are exposed to sunlight for a long time without taking any protective measures, your facial skin will easily turn red and become allergic.

2. Caused by food allergy. Eating too much food containing photosensitive substances and then exposing yourself to the sun can also cause ultraviolet allergy. Common photosensitive plants include celery, rapeseed, amaranth, Chinese cabbage, mustard, fig, lemon, white radish, coriander, leek, etc.

3. Allergies caused by using cosmetics. Skin allergies are often caused by the use of cosmetics and skin care products that are not suitable for your skin. For example, inferior, spoiled, and highly irritating cosmetics can cause skin allergies.

4. Seasonal changes. The temperature fluctuates between hot and cold, causing redness and heat on the faces of sensitive people.

5. Pollen and dust. Facial skin allergies are related to many reasons. Skin allergies in spring are largely related to pollen allergies. Dust allergy is an allergic reaction to microorganisms that live in dust and is the most common allergy. Cotton fibers, fur and various fibers can easily cause skin allergies.

6. Age increase. As we age, our skin tends to become more sensitive. This is because there is a weakly acidic sebum film on the surface of young and healthy skin, which retains moisture and protects the skin from external damage. As we age, the protective film is not as strong as before, thus leading to allergies.

In addition to the above reasons, facial skin allergies are also related to long-term use of contraceptive drugs. People who are allergic to seafood, mangoes, and nuts will also experience allergic symptoms after eating these foods.