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Symptoms and Signs – Differential Diagnosis of Pustules
Infection:
Bacterial: Staphylococcal, Gram -ve bacilli, Gonococcal, secondary syphilis Viral: HSV, VZV (pustules preceded by vesicles)
Fungal: (dermatophyte infection inappropriately treated with topical steroids) Scabies
Psoriasis (pustular)
Pyoderma gangrenosum
Drugs: steroids, phenytoin, isoniazid
Developing at sites of trauma (pathergy): Behc;et's disease, Sweet's syndrome With other skin signs: acne, rosacea
Infection:
Bacterial: Staphylococcal, Gram -ve bacilli, Gonococcal, secondary syphilis Viral: HSV, VZV (pustules preceded by vesicles)
Fungal: (dermatophyte infection inappropriately treated with topical steroids) Scabies
Psoriasis (pustular)
Pyoderma gangrenosum
Drugs: steroids, phenytoin, isoniazid
Developing at sites of trauma (pathergy): Behc;et's disease, Sweet's syndrome With other skin signs: acne, rosacea
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