Bald Spot from Revolution

[cat lady 42]

I'm worried about the bald spot that resulted from using Revolution. Used it just this first time and the bald spot is not growing back his beautiful fur. Help. Will it grow back? How long does it take before growing back?

 

[LTS3]

Some cats are allergic / sensitive to Revolution. My Aby used to get bald spots when I had him on Revolution. The bald spots stopped after I switched my Aby to Heartgard per the vet. Don't worry - the bald spots will regrow fur

Fur doesn't grow back in minutes to be patient

My Aby's bald spots disappeared after about a week.