All puppets from The Dummy Shoppe are treated before leaving the "delivery room", however, they need to be re-treated from time to time.  Generally, if they are re-treated on an annual basis, that is more than enough to keep them in great shape.
 
FIRST - Always cover the eyes with blue (painters grade) masking tape.  Scotchgard is a wonderful preservative of fabrics, but it will destroy the finish on eyes if they are not covered.
 
Once the eyes are covered, take a can of spray Scotchgard (available in the paint department of most of the major building supply chains) and lightly spray the entire exposed fabric of your puppet holding the can 9 to 12 inches away from the puppet.  When this is dry in an hour or two, gently remove the tape from the eyes and you are good to go for another year.
 
If your puppet is used 3-4 times a week, repeat this process every six months or so.