Your vet will give you specific advice relating to your dog's condition, check up dates and post-surgical medication.
In general, cats will normally take 24-48 hours before they are back to normal following an anaesthetic, during which they spend most of the time sleeping. With that in mind, make sure your cat's bed is placed in a warm, draught-free place where he or she won't be disturbed, especially if there are young children or other animals in the house.

Feeding
Cats, like humans, can feel very nauseous after waking up from an anaesthetic.
So after an operation, give your cat a small evening meal of something light, such as cooked chicken or fish. If that's not possible, then feed just a quarter of the food you would normally provide.

Exercise
Ensure you cat stays indoors until any stitches have been removed. Try to prevent your pet from running up and down stairs, jumping up on furniture, or extremes of physical exertion.
 
Stitches
Check your cat's stitches daily and tell your vet about any swelling, persistent discharge or bleeding. Stitches are usually removed after about 10 days, although this will vary according to the type of operation and the area where the stitches have been made. Some stitches are hidden under the skin and dissolve naturally on their own.

Bandages
It is very important that you keep bandages dry or they can cause further damage. If your cat must go outside, try taping a plastic bag over the bandage - a drip bag from the vet is an even better option, being made of tough material to last longer. But don't leave the bag on your cat's foot for too long, as moisture can build up inside and cause rot. Remove the bag as soon as your cat comes back inside. Look out for unpleasant odours, discolouration, swelling above or below the bandage, limping or pain.
It is very important that you go back to the vet on the specified check-up date, or earlier if you are concerned about something.

Plastic collars
Plastic collars in the shape of a funnel, known as Elizabethan or Buster collars, are designed to help prevent cats from licking, biting or scratching their wounds. It's important that the collar is left on at all times, especially at night and whenever cats are left alone. Your brave pet will soon get used to wearing the new 'accessory', but make sure it doesn't hinder eating or drinking or you will need to remove it at meal times.