This article is from the Recreational Figure Skating FAQ, by Karen Bryden with numerous contributions by others.
Boots are expensive and deserve all the care you give them. Be sure to
dry the entire sole of your boot off immediately after leaving the ice
and don't store them in a closed bag. When not in use, always remove
them from the skate bag and leave the skates in the open so that the
air can thoroughly dry them, otherwise the leather will start to
decay. Scratches and nicks in the boots should be attended to before
water penetrates the leather.