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There's a small hole in the center of the bump; when squeezed, fluid comes out.

Jun 01, 2023 Source: Cainiu Health
Dr. Liu Wan
Introduction
There may be a small pore in the center of the bump, and fluid comes out when squeezed. This could be caused by physiological factors or pathological conditions such as folliculitis and papular urticaria, most of which can be relieved through general treatment or medication. In addition, many other conditions may cause such symptoms, including allergies, eczema, and shingles. If significant discomfort occurs, prompt medical consultation is recommended, along with appropriate treatment under a doctor's guidance.

There may be a small pore in the center of the bump, and fluid can be squeezed out. This could be caused by physiological factors as well as pathological conditions such as folliculitis or papular urticaria. Most cases can be relieved through general care or medication. Specific analyses are as follows:

1. Physiological Causes

If bitten by mosquitoes in daily life, substances injected by the mosquito into the skin may trigger an allergic reaction, increasing capillary permeability and resulting in the aforementioned symptoms. It is recommended to avoid excessive scratching and clean the area with soap water, mild saline solution, or hydrogen peroxide.

2. Pathological Causes

1) Folliculitis

Folliculitis is an inflammatory skin condition primarily affecting hair follicles. Contributing factors include poor lifestyle habits and decreased immunity. If affected, the above symptoms may appear due to inflammation. In such cases, it is advisable to follow a doctor's recommendations for medication, such as vitamin A acid capsules (Viaminate), isotretinoin soft capsules, or metronidazole tablets.

2) Papular Urticaria

Papular urticaria usually occurs after insect bites. The condition may lead to inflammatory secretions, causing the aforementioned symptoms. For this, doctors may recommend topical treatments such as mometasone furoate cream, calamine lotion, or compound betamethasone and camphor cream to help relieve symptoms.

In addition, other possible causes include allergies, eczema, and herpes zoster. If significant discomfort occurs, prompt medical consultation is advised to receive appropriate treatment and prevent delays in recovery.


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