What causes itching in flat warts?
Apr 20, 2023
Source: Cainiu Health
Dr. Liu Wan
Introduction
Flat warts are usually not itchy. However, if itching occurs in the affected area, it typically indicates that the flat warts have entered the progressive stage. During this phase, when itching arises and patients scratch the lesions, viral fluid may be released and spread to other areas, leading to further infection and increased itching. It is important to avoid scratching and exposure to ultraviolet radiation to prevent worsening of the condition.
In general, itching associated with flat warts may be caused by neurological or psychological factors, allergies, or bacterial infections. The details are as follows:
1. Neurological and psychological factors
If a patient experiences emotional fluctuations such as mental stress, high pressure, or anxiety, the warts may become itchy. Symptoms usually subside once the patient's emotional state stabilizes.
2. Allergies
If the patient comes into contact with allergens such as cosmetics, pollen, or animal fur, an allergic reaction may occur, leading to itching. It is recommended to keep the affected area dry. Under a doctor’s guidance, patients may take antiallergic medications such as loratadine tablets or cetirizine hydrochloride tablets for treatment.
3. Bacterial infection
Flat warts are typically caused by human papillomavirus (HPV) infection. If a secondary bacterial infection occurs, symptoms such as itching and redness may develop. As directed by a physician, patients may use topical treatments such as tretinoin ointment or recombinant human interferon α2b gel to help alleviate symptoms.
In daily life, patients should also avoid using shared personal items, minimize direct contact with others, refrain from scratching, and avoid ultraviolet radiation to prevent worsening of the condition.
