Choice A rationale:

Topical corticosteroids can help reduce inflammation in various skin conditions, but they are not the best option for managing pain associated with shingles (herpes zoster) Corticosteroids primarily target inflammation and do not provide effective pain relief in neuropathic pain, which is characteristic of shingles.

Choice B rationale:

Antibiotics are not useful for managing the pain caused by shingles. Shingles is a viral infection, not a bacterial one, so antibiotics would not be effective in reducing pain or preventing secondary infection.

Choice C rationale:

Starting antiviral drugs, such as acyclovir, valacyclovir, or famciclovir, within 72 hours of rash onset is essential for managing shingles. These medications can help reduce the severity and duration of the illness and may also decrease the risk of developing complications like postherpetic neuralgia.

Choice D rationale:

Topical capsaicin is an appropriate option for neuropathic pain relief in shingles. Capsaicin, derived from chili peppers, works by desensitizing the nerve endings and reducing pain signals. However, it may cause a burning sensation initially, and the client should be advised on proper application and hand hygiene afterward.