Hair follicle infections are most commonly bacterial, but a small percentage of people have fungal infections. In bacterial follicular infections, the most common causative organism is Staphylococcus aureus, which usually manifests as localized redness, swelling, heat and pain. If the rash is relatively limited, topical medications can be used, commonly mupirocin ointment, fusidic acid cream, erythromycin ointment, etc. If the rash is more extensive and topical medications are not effective, oral medications such as cephalosporins and macrolides can be considered. If the area of infection is large, pus has been formed and there is a fluctuating feeling, timely incision and drainage is required. In addition, physical therapy, such as far-infrared rays, ultraviolet radiation, etc., can also be used. If the infection is caused by a fungal infection, such as Malassezia folliculitis, there is usually a mild itching, burning and stinging sensation, which can be treated with topical and oral antifungal medications.