Skin infections and Treatments

Question 1

Parasitic

Answer 1

• Scabies- Permethrin cream
• Pediculosis-lice treat with Permethrin rinse

Question 2

Fungal

Answer 2

• Candidiasis- bright, beefy red rash treat with topical antifungal,
• Dermatophytoses – the tineas (ringworm)
• Onychomycosis treat with Terbinafine for 6-12 weeks (only 73-79% effective, educate patient.
• Fungal infections survive on keratin, so considered superficial.
• Pathogens: Epidermophyton, trichophyton, microsporum.
• Those at risk are DM and immunocompromised.
• Diagnostics: KOH

Question 3

Bacterial

Answer 3

• Impetigo
• highly contagious

Question 4

Cellulitis

Answer 4

• Keflex (1st gen cephalosporine) 10-14 days, or dicloxacillin,
• PCN allergy use Erythromycin.
• non purulent assume staph aureus

Question 5

Cellulitis

Answer 5

• I&D first line
• NO 1st gen cephalosporine
• Consider MRSA- Bactrim, Cleocin, Doxycycline

Question 6

Erysipelas

Answer 6

• caused by strep
• cellulitis extending to superficial, cutaneous lymphatics
• treat with oral or IV antibiotics (may need admitted)

Question 7

Viral

Answer 7

• Warts (HPV hand)
• first treatment silver duct tape, other – salicylic acid, cryotherapy.
• HSV, Zoster