I wouldn't cover them during the daytime. Covering overnight with a non-absorbent covering is a specific method for increasing absorption of the medication into the skin, but if you're going to try this you need to slather a thick layer of cream on first and only leave it covered overnight. Let it air and dry out during the day, and only do this for a few nights to get the treatment cranking along. My DD had a really big one on her leg and the Dr told us to do the gladwrap trick, it responded really quickly and probably saved us at least a week of cream application.
ETA - recommended exclusion period for ringworm is to exclude until the day after the appropriate antifungal treatment has started. No requirement to cover.
Last edited by AnyDream; January 3rd, 2013 at 10:21 PM.
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