Dermatology

Question 1

Herpes Zoster Opthalmicus: complications

Answer 1

Ocular:
- Keratitis
- Uveitis/scleritis
- Acute glaucoma
- Optic neuritis/retinitis
- Progressive Outer Retinal Necrosis
- Blindness
Meningoencaphalitis
Post-herpetic neuralgia
Secondary bacterial infection
Ramsay-Hunt
Other cranial nerve palsies

Question 2

Shingles antivirals: indications and doses

Answer 2

Immunocompetent: within 72 hours of onset
Immunocompromised at any time
May use if significant ocular involvement

PO - valaciclovir 1g q8hrly for 7 days
IV - aciclovir 10mg/kg q8hrly

PO in kids or pregnancy:
- Aciclovir 20mg/kg max 800mg PO 5x/day for 7 days