Depends on what it is eating. Rice, white fish and bread can be given in small amounts to help the situation. If feeding with canned food, mix small pieces of bread in the food before serving.
Otherwise, Zoolac can also be used.
No matter what, vets should always be consulted.
from its moms milk it
You should see your vet or pet shop to get the proper medication. A six week old kitten is too small to get adult cat medicine and you can hurt it with the wrong stuff.
there are spacial kitten foods.
I have a 5 week old kitten that my fiancée and I rescued and he's healthy at 1.3lbs
A 4 week old kitten's eyes are not supposed not to be small since they open up by the second week hence they are becoming big.
If its in the form of diarrhea, its caused by stress.
take it to the vet
Kidney stones
if your kitten is bleeding from his "bum" he is sick and should go to a vet
It depends on what breed of cat.
Twice a day.
No!