What should you know about dissecting cellulitis treatment?

Despite its name, dissecting cellulitis is not the same as ordinary bacterial cellulitis. It affects scalp hair follicles and can produce tender nodules, pus, draining tunnels, crusting, and areas of hair loss. A dermatologist may examine the scalp closely and take a swab or biopsy when the diagnosis is uncertain. The pattern can resemble folliculitis or other causes of scalp bumps, so self-treating with leftover antibiotics can delay the right care.

Treatment depends on how active the inflammation is, whether infection is present, the extent of scarring, and your general health. Improvement may require repeated reviews because symptoms can return after settling.

Follow the prescribed plan exactly. Options may include anti-inflammatory medicine, antimicrobial treatment when indicated, antiseptic or medicated scalp care, and procedures for persistent nodules or scarring. Keep draining areas clean with gentle washing, avoid squeezing or picking, and pause close shaving or harsh hair products if they worsen irritation. Do not share combs, towels, or hats while lesions are draining. Record new lumps, pain, drainage, and hair loss so your clinician can judge whether treatment is working.

Tell the clinician about medicines, allergies, diabetes, and any fever. These details can change which treatment is suitable and whether monitoring or urgent assessment is needed.

Arrange dermatology care for recurring tender scalp lumps, drainage, spreading redness, or patchy hair loss. Seek urgent medical help for fever with rapidly worsening scalp pain or swelling, confusion, faintness, severe weakness, or redness that is spreading quickly. These features can signal a more serious infection rather than a routine flare.

Ask whether the findings fit dissecting cellulitis, whether a culture or biopsy is useful, how long to try the proposed treatment, and how scarring or hair loss will be monitored. Ask which scalp products are safe during a flare and what symptoms should prompt same-day care.