Hello,
Other than lethargy is your ferret eating?
Is your Ferret drinking?
How are the stools?
Is the Ferret urinating?
Any coughing or sneezing?
Any excessive salivating?
Any pawing at the face?
Any hair loss? If you can answer these questions I will try to assist you. Joan Jav917
The information and suggestions given are basic first aid measures. In an Emergency, Please Consult Your Veterinarian For Further Help. Joan