What is photodermatitis?
Of course, ultraviolet rays are useful forMan, but they are also harmful. For the formation and strengthening of bones, our body needs vitamin D, which has an excellent effect on the absorption of calcium, and so, it is synthesized under the influence of sun rays. Especially in this need babies to avoid the disease of rickets. Just do not be fanatical to this, because excessive doses of ultraviolet reverse bad influence. It breaks the structure of the dermal fibers causing it to age, premature wrinkles appear. Moreover, because of excessive sun exposure, tumors can develop.
There are many diseases that are calledphotodermatoses, these are photodermatites arising under the influence of sunlight. With such gossip, the organism undergoes many reactions: photoallergic, phototractive, phototoxic.
Phototractive reactions arise as a result ofexcess solar radiation and the first signs of photodermatitis are manifested in the form of sunburn. At the same time for every person with different types of skin, the time spent in the sun, which leads to a burn, is completely different. So, for example, owners of swarthy skin can sunbathe for several hours without consequences, and people who have blond hair and white, like sour cream, at the same time will get a severe burn. At the burn, those skin areas that were exposed to sunlight, through some time blush, moreover, there may appear blisters with a watery fluid, pains in space, burning and itching.
Phototoxic reactions occur due to substances,Which are capable of increasing sensitivity to the cultra-violet rays. Such substances can arise when a person suffers from liver diseases or they enter the body from the outside (from drugs, for example, from the use of tetracycline). Thus, in open areas of the skin, even if a person does not stay for long in the sun and its effect is not so strong, bubbles, erosions, red spots appear.
Photoallergic reactions arise in the form ofSolar eczema, prurigo (sun prurigo). If there is a reaction, then on the exposed skin appear nodules of reddish color, protruding above the surface of the skin and vesicles.
If you have photodermatitis, then youYou need to plan a trip to the doctor, because this can serve as a sign of a liver disease, such a disease is called porphyrin disease. The phototoxic reaction can occur due to the administration of many antibiotics (for example, the same antibiotics of tetracycline group), some antifungal agents (eg griseofulvin), some anti-inflammatory drugs (eg ibuprofen). For this reason, you should carefully read the leaflet, which is always attached to the drug, where you can see whether the medicine has increased the sensitivity to culture-violet rays or not.
People who love to sunbathe must beThe most careful when taking medications: there are a number of medicines that can be used to make photodermatitis. As a rule, doctors warn their patients against this possibility and advise them to be as little as possible in the sun or to use strong sunscreen. Photodermatitis can occur when taking funds with thiothiols and tar, preparations with St. John's wort, sulfonamides (antimicrobial drugs), tetracycline antibiotics, barbiturates.
Substances that increase sensitivity, toUnfortunately, they are not only contained in medicines, but also in perfumery (perfumes and deodorants), household chemicals, some vidahmyla, products with essential oils. By exposure to sunlight, they cause the body to experience unpleasant reactions. If the juice of some plants (for example, clover, laminaria, buttercups, sorrel) gets on the skin, then, under the influence of ultraviolet light, dark spots can remain.
How, after all, avoid the photodermatitis?
You need less to be in the sun during the day, remember that it is best to burn in the evening and in the morning.
Now there is a bunch of all kinds of sunscreenfunds that are excellent in helping to avoid photodermatitis. On each package and on each tube there are figures that indicate how many times they weaken the action of ultra-violet rays.
If you have sensitive skin, then do not advise before going out to the sun to use ointments, perfumes, deodorants, because as mentioned earlier, it can cause an allergic reaction.
They contain various substances thatthey include: polyunsaturated acids, bergamot oil, boric acid, parsley, phenol, eosin, musk, St. John's Wort, mercury preparations, paraminobenzoic acid, dill juice, salicylic acid, rose, retinoid iandal. It should be said that paraaminobenzoic acid is quite often contained in sunscreens, and eosin is a component of lipstick.
Photodermatitis can cause and just weakened skin, after some additional effects, they include peeling or tattooing, they use cadmium salts.
Photodermatitis can also develop in connection witha violation of the exchange of substances due to a malfunction in the work of the humoral system. Such diseases include xeroderma, polymorphic photodermatosis, solar eczema, porphyria.
How not to blush?
Of course, walking constantly in closed clothes isalso absenteeism. After all, without the sun can not live, it is necessary for us for strong teeth, bones and immunity. It is especially important to walk in the sun in spring, but very carefully. Sunscreen should always be a friend, moreover, remember that if there is fog or clouds, it does not mean that you can relax, it is not a barrier to ultraviolet radiation. After a walk it is useful to soothe the skin of the face of the nematomata or linden.
The nose requires special attention, because he, as a rule, blushes the very first, so get yourself hats or caps with big caps.
If photodermatitis has already happened to you, thento act immediately. Initially, you need to rid the skin of an unpleasant itch, in this you can help compress from thinly sliced apples, cucumber, potatoes or white cabbage. After this, start taking vitamin E daily, it will help you to remove inflammation. However, if photodermatitis appears for other reasons, for example, because of a disease of the liver or adrenal glands, then you need only medical help.