We had to have King 1/2 neutered when he was 14 because of a cancerous or infected testicle. The sac had swollen and it too was crusty/scabbed. There was never any smell though.

I say be prepared of the possibility of having to have a/the testicle(s) on Solo removed.

I do hope everything will turn out OK though. Hugs and scritchies for Solo.

Before anyone gets in on me about putting a 14 yr. old dog through surgery, we had all the bloodwork and stuff done to make sure he was healthy enough for it. We also researched anesthetics and checked which kind our vet uses.)