Vaccine reaction?

This came up overnight :/
He is otherwise well and he is not itching it? Should I call the vet?

It could be a reaction to the vaccine but it could also be an allergic reaction to anything new that he was exposed to such as a new detergent or fabric. It never hurts to call a vet to be safe though

The vet was closed when I called, but he seems otherwise well so will call in the morning.
There has been nothing new in his environment that I can think of but will keep an eye on him and call the emergency vet if needed.

looks itchy hope he is ok

It does not seem to be itchy (well it is not bothering him) it's on his head too

the vet will be able to help i would think

Yep will be calling as soon as they reopen tomorrow

Let us know how you get on!

Oswald continued to be otherwise well, the vet was happy he was not in any danger of respiratory distress so just asked me to continue monitoring him. They will be giving him an antihistamine before his next vaccination.