He's wearing the dreaded "cone of shame" even though he hasn't done anything wrong himself, he has some allergies that caused some skin irritation on his chin and neck and he was scratching it and making it bleed not allowing it to heal.
Here he is feeling sorry for himself and being the...
In guessing from the time you posted your in the UK (same) I'd say contact the PDSA just in case it is an emergency - if your eligible as well they can see your fur baby for free (they are like the NHS for pets).