How to Treat Red Bumps on the Scalp Caused by Folliculitis

Generally, red bumps on the scalp—indicative of folliculitis—may result from excessive scalp sweating, inadequate scalp hygiene, seborrheic dermatitis, scalp acne, or pityriasis capitis (scalp dandruff). Patients may choose appropriate interventions—including general measures and pharmacological treatments—based on their specific condition. A detailed analysis follows:

1. Excessive Scalp Sweating

Prolonged, heavy sweating on the scalp can cause sweat accumulation, leading to blockage of hair follicle openings. This impairs follicular ventilation and triggers mild follicular inflammation, resulting in red bumps. To manage this, promptly wipe away scalp sweat, maintain a dry and well-ventilated scalp, avoid prolonged occlusion of sweat after intense physical activity, and frequently replace clean pillowcases.

2. Inadequate Scalp Hygiene

Residual sebum, dust, and desquamated keratin on the scalp chronically obstruct hair follicles, promote bacterial proliferation, and irritate follicles—leading to inflammatory red bumps. Establish a regular hair-washing routine, select gentle, non-irritating shampoos and conditioners, and gently massage the scalp during washing to thoroughly remove debris and impurities.

3. Seborrheic Dermatitis

This condition arises from abnormally increased sebum production combined with overgrowth of *Malassezia* fungi, which provoke follicular inflammation. Clinical manifestations include scalp erythema, papules, and scaling. Under medical guidance, topical antifungals such as ketoconazole cream, selenium sulfide shampoo, or bifonazole cream may be prescribed. Additionally, reducing intake of oily and sugary foods helps stabilize sebum secretion.

4. Scalp Acne

Abnormal keratinization of the pilosebaceous duct leads to impaired sebum excretion and secondary bacterial infection, resulting in inflammatory red papules accompanied by mild swelling and tenderness. Topical medications—including adapalene gel, clindamycin gel, or fusidic acid cream—may be prescribed under physician supervision. Avoid scratching or squeezing scalp lesions.

5. Pityriasis Capitis (Scalp Dandruff)

This involves superficial inflammatory changes in the scalp, compromised scalp barrier function, and reduced local immunity—predisposing to recurrent secondary follicular infections and persistent inflammatory red papules. Under medical guidance, treatments may include coal tar shampoo, zinc pyrithione aerosol, or mupirocin ointment. Minimize scalp irritation and support barrier repair.

In daily life, maintain scalp cleanliness and dryness through regular cleansing, adopt a light, balanced diet to reduce sebum production, and avoid frequent scalp scratching, perming, or dyeing. Prioritize scalp barrier protection to lower the risk of recurrent folliculitis.