Small red blood spots on hands

When the temperature changes, many people with allergic constitutions will experience some changes on their skin. First, small bumps will appear on the skin. These bumps are small red dots. When you scratch them with your hands, they will become red and swollen, and they look very obvious. You should usually improve your immunity to prevent the disease from getting worse and the patient will have sequelae.

What causes skin allergies? 1. When the temperature changes, people with sensitive skin will feel uncomfortable, especially in hot and cold weather. Patients with skin allergies will experience hot and red faces.

2. When the seasons change, the surrounding environment will change, especially in spring, when allergens such as pollen will appear in the air, releasing histamine. This is a compound that is found in almost all tissues of the human body and can easily cause skin allergies on the face.

3. With the increase of age, the weakly acidic sebum membrane on the surface of human skin will gradually become fragile. At this time, some allergens are particularly easy to invade the patient's skin, causing skin allergies.

4. Food allergy is the most common condition in life. There are many foods that can cause food allergies. Some seafood and fruits can cause food allergies.

5. Cosmetics are especially common among women. Many of these women suffer from allergies due to the use of cosmetics that irritate the skin, especially cosmetics containing fruit acids, which are more likely to irritate sensitive skin.

There are many reasons for skin allergies, so people with skin allergies should be careful in their lives. They should pay more attention to foods and items that can cause allergies, and should also be cautious when using cosmetics. Try to moisturize the skin as much as possible, which can greatly improve the condition of skin allergies.