What do you know about solar dermatitis?

In general, white and dry people are more sensitive to sunlight and more prone to solar dermatitis than oily and black people. In addition, certain diseases can be induced or altered by sun exposure, most notably lupus erythematosus. In addition, solar dermatitis can evolve into chronic eczema if it is reversed.

Ways to prevent solar dermatitis:

1. Reduce time outside: Avoid going out between 10 a.m. and 2 p.m., when the light is strongest during the day. When you have to go out, you should also take a series of measures to protect yourself from the sun, such as wearing a hat and wearing sunscreen.

2. Participate in outdoor activities in moderation and minimize long-term activities in places where the sun is too strong. <>

3. Reasonable use of sunscreen: When going out, you can use multiple combinations of chemical sunscreen (such as sunscreen) and physical sunscreen (such as sunhat, sun umbrella) for sun protection.

4. Find out the allergenic substances: Once it is clear that it is caused by photosensitizing food, the patient should avoid eating such foods to avoid old diseases**.

Solar dermatitis is generally known as allergy to sunlight, which is an allergic reaction ** disease caused by light and occurring in the exposed area. But most people don't know that they are allergic to sunlight, and many people confuse solar dermatitis with pollen allergies. An acute inflammatory reaction caused by excessive exposure to ultraviolet rays in the sun, also known as solar dermatitis.

Solar dermatitis is mostly seen in spring and summer, a few hours to more than ten hours after sun exposure, the exposure of the ** appears clear erythema, edema accompanied by itching, burning or stinging; In severe cases, blisters and bullae appear, the blister wall is tense, the content is light yellow serous, and the blisters can rupture and erode. In more severe cases, systemic symptoms such as fever, palpitations, headache, nausea, vomiting, and even shock may occur.

Solar dermatitis symptoms:PolymorphismThis means that the rash is often different and pleomorphic in different patients, but the rash pattern is often single in a given patient. Solar dermatitis is known forSmall papules and papulesMost commonly, a small number of patients present with erythematous edema or plaques.

The lesions are closely related to daily irradiation, and after irradiation, the skin lesions are significantly aggravated and the itching sensation is aggravated. After proper protection from light, it will improve. The rash is often reversed, and lichenoid changes and pigmentation may occur over time.

Generally after the autumn gradually lessens the next yearSpring**, which can last for many years. There are lesionsBurning, itching, or stinging。In mild cases, the rash may gradually subside in 1 to 2 days, with scaling or varying degrees of pigmentation remaining; In severe cases, it can be accompanied by cold-like symptoms, such as fever, fatigue, general malaise, etc., which can be recovered in about a week.

If you want to have solar dermatitis, you should understand this disease and do not blindly prevent it.

1. As long as you wear sunscreen before going out, you will have a safe and worry-free day. In fact, after a few hours of sunscreen application, the sunscreen effect will gradually weaken due to dilution of sweat and other reasons. Therefore, it should be washed off and reapplied.

2. Occasionally forgetting to wear sunscreen will not have an impact on the **. In fact, sun exposure can be accumulated, and indirect exposure to sun exposure will accumulate for a long time, causing skin tanning, spots on the face, loss of elasticity, wrinkles, aging and other phenomena.

3. Apply sunscreen and make sunscreen effect. In fact, the active ingredient in the sunscreen must penetrate the surface of the stratum corneum to exert a protective effect. Therefore it must be eliminated after 30 minutes before going out, added.

4. **If you get a tan, applying sunscreen again won't help. The fact is that the swarthy brownish-yellow, the state of self-preservation. Thickening and melanin production are self-protective properties.

However, melanin can absorb ultraviolet rays, isolate the function, and make ** damaged, but there is no ultraviolet absorption function. So, to get outdoors, an isolation barrier between the sun and ** is essential.

5. Ultraviolet rays are only strong in hot temperatures! In fact, ultraviolet rays do not generate heat. When climbing the mountain, the higher you go, the cooler the mountain breeze becomes, but the stronger the ultraviolet rays.

For every 1,000 meters up, the ultraviolet rays are increased by 10%. It's the same on the sea, where the sea breeze makes you feel cool, but the ultraviolet rays are extremely strong.

Solar dermatitis is an allergic disease, which mostly occurs in summer and autumn. Petrochemical workers are more likely to develop this disease when they are often exposed to sunlight every day. Therefore, it is necessary to carry out active prevention and **.

1.Causative causes.

The occurrence of solar dermatitis is related to the body's allergy to ultraviolet rays, long-term exposure to the skin on the body surface, and allergic eczema and other diseases.

2.Symptomatic presentation.

1) Rash. Patients often have erythematous or rice-sized red rashes on the wrists, dorsum of hands, and forearms.

2) Tickling. The rash will be accompanied by itching, such as scratching, the rash can increase, the itching will be aggravated, and the mutual extension will form a large rash, making the patient itchy and painful.

3) Swelling. The rash swells when severe and can spread to the face, neck, and chest. If it is washed with hot salt water or applied with a hot towel, it can cause the rash to swell obviously, and in severe cases, it may even cause oozing, ulceration and infection.

3.**Method.

1) Take medications. This can be done by taking antihistamines such as Xintermine, Keminer, and Cisiramine**.

2) Rub the drug. 3% boric acid water can be applied to the local swelling area to reduce swelling. It can also be rubbed with hormone ointments such as elosone ointment or euzol ointment. Avoid contact with soap and hot water when using.

4.Precautionary measures.

1) Pay attention to sun protection. Strengthening necessary sun protection measures, such as wearing sunscreen, long-sleeved clothing, umbrellas, and sun hats, can avoid direct UV rays**, thereby reducing the occurrence of solar dermatitis.

2) Enhance physical fitness. Regular exercise, enhance immunity, improve adaptability, can effectively prevent a variety of diseases.

Solar dermatitis, also known as sunburn, is an acute inflammatory reaction produced by normal** sun exposure, which is manifested as erythema, edema, blisters, pigmentation, and desquamation.

Solar dermatitis is a disease that often appears in summer, mostly due to long-term exposure to sunlight or ultraviolet rays, which will lead to itching, blisters, redness and other phenomena on the patient's **, then, to avoid solar dermatitis, it is necessary to avoid contact with sunlight and wallpaper outside the line, try to apply some sunscreen for sunscreen when going out, or bring a parasol for physical sunscreen, so as to reduce the occurrence of solar dermatitis.

A few years ago, my relatives had severe solar dermatitis, and his face was scabbed, cracked, and itchy, and he didn't dare to scratch it

Actitis is also known as sunburn or sunburn, and it is necessary to go to the hospital in time for diagnosis.

Solar dermatitis, also known as sunburn, sunburn, solar erythema, solar edema, etc., is an acute inflammatory reaction produced by excessive exposure to ultraviolet rays, manifested as erythema, edema, blisters, pigmentation, and desquamation. Let's take a closer look at the following questions:

Who is susceptible to solar dermatitis?

What are the manifestations of solar dermatitis?

How can we prevent it?

The occurrence of solar dermatitis is related to the intensity of light, exposure time, individual skin color, constitution, ethnicity, etc. In late spring and early summer, it is common for children, women, skiers, surface workers, and people who have been engaged in outdoor work for a long time.

In addition, solar dermatitis is also related to the drugs and foods taken, such as taking related drugs (tetracyclic abjuginin, griseofulvin, chlorpromazine, tetracycline ointment, coal tar preparations, psoralen, angelica, dihydrogramurithia, furosemide, bergamot oil, lemon oil, sandalwood oil, aspirin, etc.); or ate some kind of porphyrin photosensitive vegetables and wild vegetables (such as: amaranth, gray cabbage, milk vetch, locust flower, fig, etc.); or fruits containing furanocoumarin (lemons, oranges, grapefruits, sweet oranges, figs, etc.); or eating porphyrin-like seafood (lobsters, snails, crabs, etc.) and then basking in the sun can also develop or aggravate the disease.

After a few hours to more than ten hours of sun exposure, there is clear erythema and edema in the first part (face, front of the neck, both upper limbs, etc.), and blisters, rupture, and erosion can occur in severe cases, and then the color of the erythema gradually darkens and desquamation, leaving pigmentation or hypopigmentation.

Burning or stinging sensations that often interfere with sleep. If the sun exposure area is extensive, a small number of patients may also have fever, headache, nausea, fatigue and discomfort and other systemic symptoms, and even palpitations, delirium or shock. It may also trigger the rash of polymorphic light eruption, solar urticaria, late-onset **porphyria, lupus erythematosus, herpes simplex, vitiligo, and other diseases.

1. System**: Antihistamines can be selected for mild symptoms, and low-dose glucocorticoids, aspirin or indomethacin can be taken orally for severe cases or with poor efficacy. If necessary, oral administration of hydroxyquine, chlorine, niacinamide and other anti-photosensitivity**.

2. Local**: Calamine lotion is used for light cases, and cold compresses, ice compresses, glucocorticoid creams, indomethacin solution are used for slightly heavier cases.

1. Try to avoid outdoor activities or reduce the time of activity when the sun is at its strongest from 10 a.m. to 2 p.m.

2. Avoid sun exposure, and pay attention to protection when going out, such as holding an umbrella, wearing a wide-brimmed hat, and wearing long-sleeved shirts.

3. If you are outdoors, it is recommended to routinely use a sunscreen with a solar protection factor (SPF) of 15 or more, and those with severe photosensitivity need to use a high-efficiency sunscreen with SPF of 30 or more, and apply it 20 minutes before sun exposure**.

4. Avoid taking photosensitizing drugs, vegetables, fruits and seafood.

5. Try not to use some cosmetics that contain photosensitivity.

6. People who are engaged in outdoor work can usually take vitamin C and vitamin B complex in moderation.

7. Participate in outdoor exercise often to enhance your tolerance to sun exposure.

Directly apply the herb antibacterial cream to get it quickly, don't use it indiscriminately.

Ask Shijiazhuang Jidu, you can do it here.

It is a small point of redness as soon as it is exposed to the sun, and some are accompanied by slight pain and itching, and such people should take sunscreen measures when they go out.