Bacterial Skin Infections

Folliculitis

It is caused by infection/inflammation of hair follicles
It causes red bumps(papules) with yellow heads (pustules)
Itching is common
HIV causes non infectious ( immune-eosinophilic) folliculitis
Causes & treatment:
Staphylococcus (most common)—>Antibacterial washes+- Topical and or oral antibiotics (Bactrim or Clinda)
Klebsiella (prolonged Acne treatment complication)—>Ampicillin or Cipro
Pseudomonas (hot tub)—>self limited,may use Cipro
Yeast (Malassezia)—>topical antifungal
Mite (Demodex)—> causes Rosacea like rash—>Permethrin

These are deeper skin and soft tissue infections
The simple folliculitis can progress to form deeper and larger pocket of infection we call Furuncle or Boil.
Boils are usually surrounded by a rim of irritated inflamed skin and are quite painful
Boils or Furuncles can coalesce to form a larger infection (Carbuncle) with multiple draining tracts.
Carbuncles can be associated with fever and malaise
The most common cause is Staph Aureus
The primary treatment is incision and drainage
Oral anti Staph antibiotic is recommended for severe infections with fever in addition to incision and drainage

It is caused by either Staph or Strep
It is a superficial skin infection usually seen in children in the face area characterized by redness and honey color crusting
Bullous impetigo is less common , is caused by Staph releasing a toxin that damages the skin causing flaccid blisters
If the skin ulcerate the lesion is called Ecthyma
Treatment is cleaning the skin with soap and water to remove the crust +- topical antibiotics +- oral antibiotics

Treatment:

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