My cat has started to loose the fur on his hind legs. He's an indoor cat, we don't have fleas, there are no other pets in the home. I was thinking he's developed and allergy, but his food has stayed the same. He doesn't scratch anymore than usual. His eating and drinking habits are the same. As well as his litter box use.

Are there any over the counter, or home treatments I could try?

Better take it to the vet.my cat had the same problem,doctor gave him some medicine and now it's all right.the medicine was Nizoral and PET-PHOS Felin Special Pelage(vitamins and minerals)