The baby has a temperature of 39.3, now it's 38.0. It's been 3 days wi…

The baby has a temperature of 39.3, now it's 38.0. It's been 3 days with a fever, refuses from the chest, doesn't want anything, refuses to drink water. Tried to feed him but couldn't. Went to the doctor yesterday, said it seems like teeth, throat slightly red. Practically doesn't write. Can you give some tips on how to make the baby drink water? Made juice too, didn't drink it. Baby is 7 months old.