Small blisters on hands in hot weather

We have all seen small blisters, but most people don’t know what causes them. In fact, it is caused by the infiltration of tissue fluid. Some small blisters are caused by violent squeezing, while others are caused by the body's own factors. Especially in summer, when the weather is hot, small blisters will grow on the hands. These small blisters will cause peeling and itching of the palms. Let us take a closer look at the situation below.

1. This phenomenon is relatively common and is medically called dyshidrotic eczema. Dyshidrosis is a type of skin eczema that occurs symmetrically on the sides of the hands or feet. Because it occurs in the hands and feet where sweat glands are particularly developed, and blisters are the main symptom, it is named dyshidrotic eczema. Most people believe that the cause of the disease is a nonspecific skin eczema-like reaction, which is related to personal constitution, autonomic nervous system dysfunction, and mental factors. The disease is characterized by repeated appearance of millet-sized papules and blisters on the palms and fingers, with no obvious inflammation around them. The blister walls are relatively thick, and the blister fluid is transparent at first, but then becomes turbid. After 2 to 3 days, the blister fluid is absorbed by itself, and desquamation forms after drying, revealing pink new epithelium. Linear fissures form during flexion and extension of the fingers, and the rash is symmetrically distributed. The patient feels itching and burning pain in the affected area. Hot flashes are common in summer and can heal on their own in autumn without treatment. They can easily recur for several years.

Symptoms of blisters on hands

1. The occurrence of dyshidrotic eczema has obvious seasonality. It often occurs at the turn of spring and summer and heals itself in winter. It mainly occurs in young people.

2. It is now generally believed to be a skin eczema-like reaction, which is related to factors such as mental stress, excessive sweating of hands and feet, fungal infection and allergic reaction.

3. Symmetrical occurrence on the palms and soles, deep in small blisters, occurring in batches, with tense blister walls, millet to rice-grain size, hemispherical and slightly raised above the skin surface, visible on the palms, sides and fingertips, with no inflammatory response. After the blisters dry up, they peel off to reveal new skin, often accompanied by varying degrees of itching and burning sensation.

4. Dyshidrotic eczema often recurs regularly every year.

The dangers of blisters on hands

2. Dyshidrosis not only affects the appearance of the hands, but also often affects the patient's life due to itching. In severe cases, secondary infection may occur, causing swelling and pain in the hands. Because the cause of this disease is still unclear, Western medicine has no satisfactory treatment to eradicate it.

3. There is no specific method for the prevention and treatment of this disease. In daily life, you should avoid spicy food, alcohol, coffee and other irritating foods, smoke less or no smoking, and use less or no alkaline soap, laundry detergent, and detergent to wash your hands. Do not pick at blisters or tear the skin. Local treatment is mainly to astringe and relieve itching. If the itching is severe, you need to go to the hospital for a check-up.

4. It is recommended that friends who have this phenomenon reduce contact with soap, alkali, washing powder, detergent, gasoline, alcohol and other substances in daily life; keep emotions open and avoid emotional frustration; do not tear off the shed skin with your hands to prevent infection and pus. If serious symptoms occur, go to the hospital for treatment and do not delay.