You will probably have times when your cat refuses to eat. Naturally, you must try to address all possible causes of in appetance, such as stomach acid, mouth ulcers and nausea the suggestions from last two post to make the food seem more appetising. But if all else fails, there are a couple of other things you can try.
Company While Eating
Many pawrents found this way it's helpful. they would sit by cat encouraging us to eat, praising each mouthful. It does work for some cats.
Feeding by Hand
This is the next stage, where you lift the food out of the bowl and encourage your cat to lick it off your finger or a spoon. It can take hours, and your cat will probably drop lots of the food, but many pawrents found this really helped persuade cat to eat.
Syringe (Assisted or Force) Feeding
Finally, you can try what many people refer to as force feeding, but what I prefer to call assisted feeding. This entails placing your cat's food into a syringe and syringing it gently into the cat's mouth. In particular can be made into a mush with water and syringed in easily. Alternatively, you can puree tinned food (prescription or standard food) using a mixer or blender, add water to make it more liquidy (otherwise it is hard to squeeze out of the syringe), then draw it up into a syringe. Using warm water can make the food more attractive to your cat.
The size syringe you should choose depends upon how strong your hands are - the smaller and weaker your hands are, the harder it is to push a larger syringe.