You should never give medicine prescribed for a human to a
cat. It is very dangerous to the
cat to do this.
How many days has your kitty been
sneezing ? I don't know where you read on the internet that you can give a cat amoxicilian . You can't believe everything you read on line. You said you have no choice. Ah, but you do. You say you don't have money to take her to a vet. There are some vets that will let you pay a little at a time.