There are many allergens that cause allergies. Different people have different constitutions and have different allergic reactions to different things. Some people are allergic to ultraviolet rays. The sun we see contains ultraviolet rays. Ultraviolet rays People with allergies need to protect themselves from the sun, but what should you do if you are allergic to ultraviolet rays? What are the symptoms of UV allergy?

1. What to do about ultraviolet allergy

1. Causes of ultraviolet allergy

Ultraviolet allergy occurs more frequently in spring and summer due to the penetrating UVA , UVB, these two types of ultraviolet rays, damage the dermal layer of the skin. Ultraviolet allergy is also related to a person's physique, skin color, sun exposure time, exposure range, diet, etc.

2. Symptoms of ultraviolet allergy

People who are allergic to ultraviolet rays will have symptoms such as redness, swelling, stinging, burning, itching, and blisters on their skin, and then peeling will occur. The main manifestation is On the face, back of hands, and neck.

3. How to prevent ultraviolet allergy

1. Avoid eating foods that contain a lot of light-sensitive substances. If you eat vegetables such as celery, amaranth, malantou, white radish, and leeks, , go out as little as possible;

2. Be sure to take sun protection measures before going out, and reduce the time in the sun;

3. After returning from outdoor activities in summer, you first need to clean your body. Maintain hygiene and apply body lotion.

2. The impact of ultraviolet rays on skin

1. Dry and dehydrated skin

Ultraviolet rays will make the skin dry and dehydrated. Because ultraviolet rays can cause damage to epidermal cells and affect the normal moisturizing function of the skin, coupled with the higher temperature in the sun, the skin's own water evaporates faster, and the skin is easily dehydrated and dry.

2. Skin pigmentation

Ultraviolet rays will accelerate skin pigmentation. We often say that sun exposure will cause the skin to tan and cause sun spots, which are all consequences of pigmentation. Ultraviolet rays not only activate melanocytes, leading to the secretion of large amounts of melanin, but also cause pigment deposition on the surface of the skin.

3. Skin erythema

Ultraviolet rays may cause erythema on the skin. This is caused by the expansion of capillaries in the skin after ultraviolet rays. Especially for people who have been sunburned or have sensitive skin, the erythema will be deep in color and wide in scope.

4. Skin photosensitivity reaction

Ultraviolet rays are likely to cause photosensitivity reactions in the skin. The photosensitivity reaction we are talking about refers to the abnormal reaction that occurs when the human body is exposed to sunlight, such as peeling, itching, rash and other allergic reactions. In addition, there are things like light eruption, chronic actinic dermatitis, etc. that also fall into this category.

5. Skin aging

Ultraviolet rays will cause premature aging of the skin. This is because ultraviolet radiation causes the skin's tension to become worse and worse, causing loss of elasticity and aging reactions such as sagging and sagging. The UVR contained in ultraviolet rays can destroy collagen fibers in skin tissue, causing wrinkles and sagging of the skin.

6. Skin tumors

Ultraviolet rays may also cause skin tumors. Ultraviolet rays may override the body's immune response and induce melanoma, skin cancer, etc. on the skin. Although the formation of skin tumors caused by ultraviolet rays is a complex process, long-term exposure to ultraviolet rays will undoubtedly increase the possibility of tumors, so you must pay attention to UV protection.