My Pit bull tater has been boarded at a kennel for over 3 months (housing issues) 2 days ago I noticed red circular spots on his belly, armpit, chest and his paws.I thought about ringworm but my mom keeps saying no. Please somebody help?

The dog had this fungi , i forgot what is was called but its like a fungi that you get from not being cleaned in a while . The dog got taken to the vet , and they made him stay there for 3 weeks , and they treated him with a IV and medicine