A pustula is a small raised area on the skin that is filled with pus. It is a common symptom observed in various skin conditions and diseases. The term is derived from the Latin word "pustula," meaning blister or pimple.
Typically, a pustula appears as a small, inflamed, and reddened bump on the skin. It is characterized by the accumulation of white or yellowish pus, which consists of dead immune cells, bacteria, and tissue debris. Pustulas can manifest in different sizes and shapes, ranging from pinpoint-sized to larger lesions.
Pustulas can develop as a result of various medical conditions, including folliculitis, a skin infection resulting from hair follicle inflammation; acne, a skin disorder caused by excess oil, bacteria, and dead skin cells; and impetigo, a highly contagious bacterial infection. Additionally, they can be associated with autoimmune diseases such as psoriasis and rosacea.
The treatment of pustulas depends on the underlying cause. Topical antibiotics or antiseptics are often used to combat bacterial infections. In more severe cases, oral antibiotics may be prescribed by a healthcare professional. Patients are advised against squeezing or popping the pustulas as it may lead to further infection and scarring.
In summary, a pustula refers to a small raised area on the skin that contains pus. It is a common manifestation of various skin conditions and can be treated with appropriate medical interventions.
