In the summer, the problem of itchy skin increases. Many people find that they often have some small transparent blisters the size of rice grains on their fingers, which are not only itchy, but also molting when the blisters burst. There are also people who have rashes on their skin in the summer, itch so badly, scratch their hearts and scratch their livers, can't sleep, and even feel like they're itching in their dreams.
Why do you have small blisters on your hands in the summer?
"This little blister tickles people's hearts and lungs, and they can't sleep at night." Many people find that some transparent, rice-grain-sized "blisters" will suddenly appear on their fingers, palms, and between their fingers, which not only makes people itch unbearably, but also molts after the "blisters" are broken. In fact, this is dyshishi, a common skin disease in summer. Dyshidrosis is also known as dyshidrosis, which mainly occurs on the hands and feet, and is manifested as needle-tip to miliary-sized blisters, containing clear or turbid serous fluid, which will be scaled after drying, and often have varying degrees of itching or burning. The causes and pathogenesis of dyshidrosis are complex, often related to local allergies, psychiatric factors, and a history of atopic dermatitis. In addition to dyshidrosis, there are also many skin problems that "pop up" in summer.
Cao Zihao/photo
Summer is the season with a high incidence of dermatitis and eczema
Yang Rongya, director of the Department of Dermatology of the Seventh Medical Center of the General Hospital of the People's Liberation Army, and Li Houmin, chief physician of the Department of Dermatology of Peking University People's Hospital, said that summer is the season of high incidence of dermatitis and eczema, and the following skin diseases are very common.
1. Papular urticaria - red papules accompanied by itching and pain
Papular urticaria is also a type of insect bite dermatitis, which is an inflammation or allergy of the skin caused by insect bites (such as mosquitoes, midges, mites, etc.), often manifested as red papules, papules, edematous erythema, and may be accompanied by itching or pain.
2. Summer dermatitis – symmetrical erythema, papules or blisters
Summer dermatitis is mainly caused by high temperature, high humidity, and irritation of sweat and dust. It is more common in adults and women, especially in people who spend a lot of time in environments above 30°C, outdoor workers, or obese, and presents with symmetrical erythema, papules, or blisters on the extremities and trunk with marked pruritus.
3. Atopic dermatitis - itching, stinging, redness and swelling
Atopic dermatitis is common in allergies, and the pathogenesis is complex, mostly due to the interaction of external or internal factors. Frequent bathing in summer, frequent skin contact with detergents and other products, and increased UV exposure can cause dermatitis and eczema. Some pet owners will always experience itching, which is usually caused by allergies.
What should I do if I have dermatitis and eczema in summer?
"Topical corticosteroids remain the mainstay of treatment for dermatitis eczema." Dr. Yang Rongya said that the "hormone ointment" often referred to in everyone's mouth refers to glucocorticoid topical preparations, which have a therapeutic effect by reducing the release of histamine and other mediators. At the same time, hormones can suppress the immune response and reduce the symptoms of inflammation, thereby reducing itchy skin. According to the Guidelines for the Diagnosis and Treatment of Atopic Dermatitis in China (2020 Edition), topical glucocorticoids are the first-line therapy for the diagnosis and treatment of atopic dermatitis. ①
"The treatment of dermatitis eczema is graded treatment, according to the extent of skin lesions, the degree of itching is divided into mild, moderate and severe, if it is mild dermatitis eczema, simple topical drugs can solve the problem, such as compound dexamethasone acetate, mometasone furoate, etc. Moderate to severe cases can be treated with systemic therapy on the basis of topical drugs, including oral anti-inflammatory, anti-allergic drugs, etc. Therefore, topical drug therapy is a very important treatment. Among them, hormones directly act on the affected area when used externally to treat dermatitis and eczema, and rarely affect other organs. "There are many kinds of hormone drugs, and doctors will choose different types of hormones and determine the duration of medication according to the strength of the anti-inflammatory effect of the drug, the location of the patient's lesion, the severity of the disease, etc." ”
Cao Zihao/photo
Many patients have the experience of eczema recurrence as soon as the hormone cream is stopped, and they are worried about the formation of "hormone-dependent dermatitis". Dermatologists suggest that eczema is a recurrent itchy, inflammatory disease, and most patients present with relapses rather than hormone dependence. Reasonable topical hormone therapy under the guidance of a doctor does not lead to hormone dependence.
There are three reasons for the recurrence of dermatitis eczema: first, the characteristics of the disease itself, which is related to the patient's physique; Second, due to excessive fear of hormones, the medication is not standardized, such as insufficient treatment of topical hormones, and stopping the drug when the skin is not red can also lead to recurrence; The improvement of the rash does not mean that the dermatitis eczema has disappeared, as long as the skin inflammation is still there, it is still easy to cause itching, and stopping the drug without authorization and scratching will aggravate the symptoms; The third is that obvious scratching and insufficient moisturizing during treatment will aggravate the damage of the skin barrier. Patients have a dry and fragile skin barrier and should be moisturized with topical application and moisturizer.
Dr. Li Houmin reminded that skin diseases are closely related to the environment, temperature, humidity, as well as emotions and clothing, food, housing and transportation. In addition to drug treatment, dermatitis eczema also needs to pay attention to moisturizing, less scratching and less scratching.
Avoid 4 misunderstandings about dermatitis and eczema medication
Myth 1: Worry about the hormones in the ointment being harmful to your health
According to the Expert Consensus on the Clinical Application of Mometasone Furoate Cream, topical glucocorticoids are still the first-line treatment for many skin diseases, but there is a problem of "hormone resistance" in clinical practice, resulting in many patients with skin diseases not getting due treatment. (2) In fact, as long as it is used properly, the amount of hormone components absorbed into the body through the skin is low, and it is relatively safe. For general dermatitis eczema, use short-term (generally continuous external use should not exceed 2 weeks for any part of the body) topical medication, which will not endanger health.
Myth 2: Indiscriminate use of prohibited "elimination" products
"Elimination" belongs to the category of sanitary disinfection products. According to Dr. Yang Rongya, some "elimination" products may have excessive publicity of efficacy and illegal addition of prohibited preparations, and if the "elimination" products are mistakenly used as medicines, the treatment of the disease may be delayed and the condition will be aggravated.
Dr. Li Houmin reminded, "Some 'elimination brand' products have hormones added to them, even strong and super potent hormones, but they are not written in the ingredients, leading everyone to think that they do not contain hormones." Prolonged use can lead to hormone dependence, so regular drugs should be used under the guidance of a doctor. ”
Myth 3: Apply a lot of ointment at will
When encountering a rash, some people don't care about it, buy a tube of ointment and start using it. However, there are many types of skin diseases, and different drugs are used for different causes. Dr. Li Houmin reminds that if it is the first time to use ointment, you should first see a doctor to make a clear diagnosis before prescribing the right medicine. After the diagnosis, the doctor will tell you which drugs you can choose, how to reduce them, and what you should pay attention to in your life.
Myth 4: Choose a strong ointment at the beginning
Some people believe that the more potent the ointment, the faster and better it will work, but this is not the case. Dr. Yang Rongya reminds that super potent hormones and strong hormones are suitable for severe, hypertrophic skin lesions; Intermediate-acting corticosteroids are indicated for mild to moderate skin lesions; Weaker hormones are indicated for mild and moderate skin lesions, including the face and delicate areas of the skin. In principle, it is first to choose the lowest strength of hormones of sufficient strength, and avoid the use of preparations that are too strong or not enough strength; In general, mild erythema, micropapules, or desquamative lesions, especially in delicate areas of the body, are preferred with weak corticosteroids.
Finally, remind everyone: dermatitis eczema can be treated with ointment, but hormone ointment is not a panacea for the treatment of skin diseases, can not be used for a long time, overdose, random use of hormone ointment, should be under the guidance of a doctor or pharmacist, clear skin problems, symptomatic selection of correct drugs, standardized medication is the key. In addition, when purchasing, it is necessary to look for hormone ointment with the quasi-brand name of OTC Chinese medicine and buy it in a regular pharmacy or a regular medical online store.
Resources:
(1) Atopic Dermatitis Collaborative Research Center, Immunology Group, Chinese Society of Dermatology and Venereology. Guidelines for the diagnosis and treatment of atopic dermatitis in China (2020 edition)[J]. Chinese Journal of Dermatology,2020,53(2):81-88.
(2) Li Linfeng. Expert consensus on the clinical application of mometasone furoate cream[J].Chinese Journal of Dermatology and Venereology of Integrated Traditional and Western Medicine,2017,16(01):88-90.)
Source: Health Times