No, he may have ticks or fleas. You can take him to the vet OR gently dip a rag in unflavored listerine mouthwash and gently wipe him off.
yes it's ok, they are both hampsters.
No they will fight.
It might mean that the hamster has mites, especially if it is scratching patches of fur off. It could also possibly be an allergic reaction, make sure your wood shavings and bedding are hamster specific - you should not use sawdust for example. You should take it to the vet if it continues.
No do not feed it that.
He died?!?!?!??!?!
Fleas! Or an ear infection, if it's in the inner ear.
your hamser may be pacing about its cage or scratching a lot
If you can tell what your hamster looks like when it is cleaning itself you will be able to tell if it has fleas because it will be scratching itself more than you have ever seen it do.
Yes although the hamster might naw on it
ya, that is fine.
Yes.
Your hamster may be trying to get your attention or may simply be trying to explore or mark its territory. However, if the scratching is excessive or accompanied by other symptoms like hair loss, it could indicate skin irritation or parasites, and you should consult a vet.