What causes itchy small lumps under the skin?
May 15, 2023
Source: Cainiu Health
Dr. Liu Wan
Introduction
Itchy small subcutaneous lumps may be caused by insect bites, urticaria, eczema, etc. Insect bites typically occur when the insect's mouthparts pierce the skin and inject venom, triggering an allergic reaction in the body, which often leads to skin itching. Symptoms can be relieved under medical guidance using medications such as calamine lotion or sodium chloride and hydrochloride solution.
Generally, itchy subcutaneous small lumps may be caused by mosquito bites, urticaria, eczema, etc., and patients can receive symptomatic treatment accordingly. Specific analyses are as follows:
1. Mosquito bites
Mosquito bites usually occur when the insect's mouthparts pierce the skin, allowing its toxic substances to enter the skin and trigger an allergic reaction in the body, commonly accompanied by skin itching. Patients may use calamine lotion or cooling anti-itch lotions as directed by a physician to relieve symptoms.
2. Urticaria
When the body comes into contact with allergens, mast cells may become inflamed and activated, leading to urticaria and the release of chemotactic factors, serotonin, and other substances, resulting in the aforementioned symptoms. Patients may follow medical advice to use medications such as compound ketoconazole cream or levocetirizine hydrochloride tablets for treatment.
3. Eczema
Eczema may be triggered by hormonal imbalances, immune factors, psychological stress, and other causes. Under the stimulation of these factors, patients' skin tissues may develop symptoms such as papules, erythema, and itching. Patients may use boric acid solution or mometasone furoate cream as directed by a physician for treatment.
In addition, such symptoms could also be caused by folliculitis, seborrheic dermatitis, cellulitis, etc. It is recommended that patients maintain a light diet during treatment.
