BoboFarm
Loving the herd life
He, and the others, may have ringworm. Lime sulfur dips are the treatment. You can hope it's localized and treat with an anti-fungal (athletes foot treatment) but you have to also be careful about ingestion. When I treated my litter of three they lost about 90% of their hair. We treated once a week for over a month. That was 15 years ago so I'm not sure if things have changed. Ringworm is highly contagious to humans and other animals.
If you have a black light you can bring him in a dark room and shine the black light on his foot. Ringworm will floresce. You can also see if the hair pulls out easily around the toe. Hair on affected skin will essentially fall out and pulls out like tufts from a shedding coat.
I wouldn't treat it as an emergency but a vet visit to confirm diagnosis might be helpful and will narrow down what treatment they need.
If you have a black light you can bring him in a dark room and shine the black light on his foot. Ringworm will floresce. You can also see if the hair pulls out easily around the toe. Hair on affected skin will essentially fall out and pulls out like tufts from a shedding coat.
I wouldn't treat it as an emergency but a vet visit to confirm diagnosis might be helpful and will narrow down what treatment they need.