Swollen and itchy fingers are common in frostbite, insect bite dermatitis, urticaria, contact dermatitis and other diseases.
1. Frostbite: generally in a low-temperature environment for a long time, especially in winter, poor peripheral circulation, easy to trigger frostbite, finger swelling and itching phenomenon.
2. Insect bite dermatitis: mainly due to the finger skin by mites, mosquitoes, midges, bedbugs, fleas, ticks and other insects bites or poisonous sap stimulation, localized swelling, itching, and may even appear painful symptoms.
3. Urticaria: due to contact with animal fur, pollen, certain allergenic foods, pathogenic bacteria, etc., stimulate the skin, easily triggered by the symptoms of urticaria, occurring in the fingers, may appear finger swelling, itching and other discomforts.
4. Contact dermatitis: If the fingers come into contact with irritating substances, such as strong acid, alkali, soap, detergent, etc., contact dermatitis can be induced, and the fingers appear itchy, swollen and other symptoms.
It is recommended that patients go to the regular hospital dermatology consultation, clear diagnosis, timely treatment, to avoid delaying the condition.