Inflammatory process involving the hair follicle. Causes include bacterial, fungal, viral, and parasitic microorganisms.
Most cases are superficial and result from infection by Staphylococcus aureus. Use of antibacterial soaps may be all that is necessary for this self-limited condition.
Deeper infection and inflammation of hair follicles from Staphylococcus aureus generally require systemic antibiotic therapy based on culture sensitivities.
Other common infectious agents include gram-negative organisms, fungi, viruses, and parasites; can occur in acne patients undergoing long-term oral antibiotic therapy and may mimic an acne flare.
Treatment is tailored to the underlying cause; hygienic measures, MRSA eradication, and symptomatic therapies are other important treatment modalities to consider.
Bacterial folliculitis of chin due to S aureus
From the personal collection of Professor Baden, MD