Leg dermatitis symptoms?

summary

Dermatitis is a general term for skin inflammatory diseases caused by various internal and external infection or non infection factors. It is not an independent disease. Its etiology and clinical manifestations are complex and diverse, and it occurs repeatedly, so clinical treatment is difficult. The concept and classification of dermatitis and eczema is one of the controversial issues in dermatology academic circles. In the past, they were used as synonyms without strict distinction. For example, some people called atopic dermatitis atopic eczema. Leg dermatitis symptoms? Let's talk about it

Leg dermatitis symptoms?

The lesions are large bright red spots, with dense needle to miliary papules on the erythema, sometimes with papules. Scratch marks and blood scabs appear after scratching, and the skin is rough and thickened for a long time. The skin lesions have severe itching. The rash mainly occurred in the trunk and limbs, especially in the extended side of the two legs. More common in adults. The onset time was from June to August. The temperature will decrease or subside naturally when it is cool in autumn. The disease may recur in this season.

Perspiration is the main channel of heat dissipation and excretion in summer. The water content in perspiration accounts for 99%. Of the remaining 1%, half is inorganic salt represented by sodium and potassium, and the other half is organic matter metabolized by urea, lactic acid and amino acid. These inorganic salts and organic substances are not substances that normally exist on the surface of the skin. When the water evaporates, these substances will stay on the skin. As the amount increases and the time goes on, they will stimulate the skin and cause skin inflammation. It is very necessary to pay attention to this point.

In hot weather, try to stay in a cool and ventilated place and avoid going out frequently. When going out, it is best to use a black sunshade for shading no matter it is cloudy or sunny, because black can absorb ultraviolet rays of various wavelengths to block the damage of ultraviolet rays to the skin. Humid and muggy season can use air conditioning dehumidification, so as to avoid excessive sweating.

matters needing attention

Follow the use principle of external medicine. In the acute stage, glucocorticoid cream can be used for less exudation, and 3% boric acid solution can be used for cold and wet compress for more exudation; Glucocorticoid emulsion and paste can be used in subacute stage, and antibiotics can be added to prevent secondary infection; In the chronic stage, ointment, hard ointment and film were used; Intractable localized lesions can be treated by intradermal injection of glucocorticoid.