Folliculitishttps://en.wikipedia.org/wiki/Folliculitis
Folliculitis is the infection and inflammation of hair follicles. It may occur anywhere on hair-covered skin, and may appear as pimples. Most cases of folliculitis develop from Staphylococcus aureus.

Most simple cases resolve on their own, but first-line treatments are typically topical ointments. Topical antibiotics, such as mupirocin or neomycin/polymyxin B/bacitracin ointment may be prescribed. Oral antibiotics may also be used. Fungal folliculitis (pityrosporum folliculitis) may require an oral antifungal.

○ Treatment
All medications for treating acne also help with folliculitis. Benzoyl peroxide and azelaic acid help treat folliculitis lesions. OTC antibiotic ointment may also be used in some suppurative cases.
#Benzoyl peroxide [OXY-10]
#Adapalene gel [Differin]
#Polysporin
#Bacitracin
  • If there is one or two, it's usually just pimples
  • Antibiotic ointments can be tried if multiple lesions occur suddenly.
  • Severe form
  • It often appears as a large number of pustules that occur suddenly on the torso.
  • An acne-shaped, non-itchy rash that occurs suddenly on the torso.
  • Such large single lesions are often caused by germs such as S. aureus. You may consider taking antibiotics.
  • Acne vulgaris on very oily skin. Acne is a type of folliculitis that occurs in adolescence.
  • If the abscess is incised and drained, it will heal faster.
References Folliculitis 31613534 
NIH
Folliculitis is a common, generally benign, skin condition in which the hair follicle becomes infected/inflamed and forms a pustule or erythematous papule of overlying hair-covered skin. Most commonly, folliculitis is caused by bacterial infection of the superficial or deep hair follicle. However, this condition may also be caused by fungal species, viruses and can even be noninfectious in nature.
 Malassezia (Pityrosporum) Folliculitis 24688625 
NIH
Malassezia (Pityrosporum) folliculitis is a fungal acneiform condition commonly misdiagnosed as acne vulgaris. Although often associated with common acne, this condition may persist for years without complete resolution with typical acne medications. Malassezia folliculitis results from overgrowth of yeast present in the normal cutaneous flora. Eruptions may be associated with conditions altering this flora, such as immunosuppression and antibiotic use. The most common presentation is monomorphic papules and pustules, often on the chest, back, posterior arms, and face. Oral antifungals are the most effective treatment and result in rapid improvement. The association with acne vulgaris may require combinations of both antifungal and acne medications.
 Special types of folliculitis which should be differentiated from acne 29484091 
NIH
In this article, we introduce several special types of folliculitis which should be differentiated from acne, including superficial pustular folliculitis(SPF), folliculitis barbae and sycosis barbae, perifolliculitis capitis abscedens et suffodiens, folliculitis keloidalis nuchae, actinic folliculitis, eosinophilic pustular folliculitis (EPF), malassezia folliculitis and epidermal growth factor receptor(EGFR) inhibitor-induced papulopustular eruption.