The general treatment cycle of canine distemper is less than 2 months. If treated in time, there should be no sequelae. Some dogs will have sequelae such as convulsions or coughs after being cured. The temperature of 38.5 is within the normal range, and the temperature of puppies will be slightly higher than that of adult dogs. Does your dog gasp? Pneumonia can be accompanied by cough and asthma. I thought of these for the time being. I am a pet beautician, not a pet doctor. My answer may not be comprehensive. If you have any questions, you can ask additional questions tonight. A master of pet medicine will come to the company for training tomorrow. I can ask for you.