It varies...  When Ming had ringworm (he came from the shelter with it
all over his face, and several spots on his neck and legs that were
about the size of my thumbnail) the vet said that it would be 3-4 weeks
before the skin healed and 4-5 weeks before the spots began to regrow
fur.  He also warned me that for the first couple of days the spots
might continue to grow. Apparently, the fungus weakens the hair, so it
falls out a day or so after the infection spreads to that area.  Ming's
spots actually healed in about 2 weeks and were starting to regrow fur
in just under 3.  The vet had me giving him a bath every 2-3 days for 3
weeks along with oral medication.  We thought he would be on the oral
meds for at least 10-12 weeks, but I stopped at about 7 weeks, since
there were no signs of active infection after week 3.  I would have
stopped earlier, but the dog and I developed 2 or 3 little spots (we
treated those with topical ointment for the dog and a topical cream for
me).  I kept everyone on their treatment until there were no new spots,
and all the old spots were healed and had new fur on them (well, except
for my arm, which didn't have fur in the first place).

Katrina
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