Hi
This sounds like an infection and there's not much you can do for him unfortunately. If there is any hope it will need to be via treatment from a vet.
Cathy Wickenden BVet Med MRCVS
Barton Lodge Veterinary Centre
1 Midland Road, Hemel Hempstead, Hertfordshire, HP2 5BH
Tel: 01442 216048 24 hours
[
www.bartonlodgevets.co.uk]