If you are a kid (like me), and your parents don't let you have go to the vet Then hitch a ride with a friend or pay a cab. It is nessasary to have a vet if your poor lil' hammy is sick and you don't know what to do.
Remember You dont wanna wake up to a dead hammy, Believe me it happens. So try to get a vet When he/she is sick, if you think he has something you should try to look at the internet and match the symtoms if you cant go to the vet at once.