Boil an egg, get the yolk out, add a little water, make it into a paste, take a very small spoon (ear-digging spoon is also acceptable), hold it a little, and see if it can fall down. If not, bury his mouth in the paste, and he can eat it once, about twice a day, one spoon at a time (there are three spoonfuls in the ear-digging spoon). If you feed water, take an empty eye drop bottle (be sure to wipe it clean) and feed it like a nursing bottle. If not, you can use a straw of oral liquid, pour some water, and cover his mouth with a round one (the sharp one will hurt him), at most two tubes a day. Cover it with a folded paper towel at night (don't cover your head), and it is best to put a paper towel on it.

Put it in the house when you sleep, and put your arms around him at ordinary times.