The document discusses various bacterial skin infections including impetigo, folliculitis, furuncle, and cellulitis. Impetigo causes thick honey-colored crusts and is caused by streptococci or staphylococci. Folliculitis causes small pustules near hair follicles due to staphylococci in areas of friction or moisture. Furuncles are deep hair follicle infections presenting as tender, erythematous nodules caused by staphylococci or seborrheic dermatitis. Cellulitis is a subcutaneous tissue inflammation possibly complicating a primary skin infection, with symptoms of fever, headache, and tender erythema. Treatment involves antibiotics,

1. Kirandeep kaur
Phd scholar
Bacterial Infections Of Skin

2. Impetigo
It is the superficial pustules covered by a thick,
honey yellow colored crusts
Etiology:
 Group A beta hemolytic streptococci
 Staphylococci
 Poor hygiene
 Low socioeconomic status

3. Clinical Manifestation
 Vesiculopustular lesions develop like thick honey
colored lesions
 Erythema
 Pruritic lesions
 Primary infection

4. Treatment
 Systemic antibiotics like penicillin, streptomycin
 Oral antibiotics like oral penicillin, erythromycin
 IM bezathine penicillin
 Local topical antibiotic ointments like bactroban
 Warm saline or aluminium acetate followed by
soap & water removal of crusts.
 Proper hygiene is adviced

5. Folliculitis
It is the small pustule formed near the opening of
the hair follicles.
Etiology:
 Staphylococci present in areas of friction,
moisture, rubbing or oil.
 Increased incidence in patients with diabetes
mellitus.

6. Clinical Manifestations
 Small pustule at hair follicle with erythema
 Development of crusts
 Most commonly seen in scalp, beard &
extremities
 Tender to touch

7. Treatment
 Anti staphylococcal soap like hibiclens, lever
2000 and washes with water
 Topical antibiotics like bactroban
 Warm compresses of water or aluminium acetate
solution
 Systemic antibiotics like penicilin is administered

8. Furuncle
 It is the deep infection of the skin with tender
erythematous area around the hair follicle.
Etiology:
 Staphylococci infection &
 Seborrheic dermatitis

9. Clinical Manifestations
 Tender erythemas around the hair follicle
 Pus formation with discharges
 Core of necrotic debris around the rupture
 Common in face, back of neck, axillae, breasts,
buttocks, perineum, thighs.
 Pain in the area of furuncles

10. Treatment
 Incision and drainage of the furuncles.
 Packing the area with dressings
 Application of warm and moist compresses to
improve healing
 Antibiotics with penicillin and erythromycin.
 Meticulous care of the skin by maintaining proper
hygiene and antiseptic solutions to clean the
affected site.

11. Cellulitis
It is the inflammation of the sub cutaneous tissue
possibly a complication of a primary infection
Etiology:
 Staphylococcus aureus
 Streptococcal infection
 Any condition causing skin break down

12. Clinical Manifestations
 Hot, tender erythematous and edematous area
with diffuse borders,
 Chills
 Malaise
 Fever & head ache
 Characteristic tenderness

13. Management
 Most heat application to the affected area,
 Immobilization and elevation of the affected area
 Antibiotic therapy with oral and systemic penicillin
treatment
 Amputation of the affected limbb if progressive
gangrene develops.