Pustule

Pustule is a small collection of pus in the top layer of skin (the epidermis) or beneath it in the dermis. Pustules frequently form in sweat glands or hair follicles. Pus is a mixture of inflammatory cells and liquid.

Causes

Pustules may form as a result of an infection of a hair follicle or sweat pore. This can occur in a variety of diseases, including acne, impetigo, and psoriasis. Other causes include exposure to certain chemicals or drugs, or the result of a skin condition such as rosacea or dermatitis.

Symptoms

The main symptom of a pustule is a small, raised, red or white bump on the skin that contains white or yellow pus. They are often painful or tender to the touch. In some cases, the skin around the pustule may become red, swollen, or inflamed.

Treatment

Treatment for pustules depends on the cause. Over-the-counter treatments such as benzoyl peroxide or salicylic acid can be effective for acne. If the pustules are caused by a bacterial infection, antibiotics may be prescribed. In severe cases, a dermatologist may need to drain the pustule. It is important not to squeeze or pick at a pustule, as this can lead to scarring and a spread of the infection.

See also

• Acne
• Impetigo
• Psoriasis
• Rosacea
• Dermatitis

Pustule Resources
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