Take him to Dr. Markus Luckwald at the Animal Clinic at Markham Road and Eglinton. Just east on Eglinton from Markham on the south side of Eglinton.
If you own an animal you have to take care of it, and sometimes a vet is the only solution.
Make sure your aspen shavings are changed and dry at all times,
and that the cage has a light for heat on it. Heat and proper food are critical, and if you have those, you shouldn't have sick animals.