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Is my puppy's lice contagious? How to protect my other dogs?

Updated on September 23rd, 2025

I’m taking care of a puppy with lice. I have other dogs but I’m keeping the puppy In a isolation room. The puppy was Treated with tropical Treatment. They said she is still contagious for two weeks. How do I keep my pets from getting it? Can the lice eggs fall off?

1 Answer

Most Helpful Answer

Ana M, DVM

Answered By Ana M, DVM

Veterinarian

Published on November 12th, 2018

Thank you for submitting your question regarding the puppy! I would continue to keep her separate your dogs. Vacuum that room frequently and be sure to wash all bedding where she sleeps. Lice eggs are typically adhered to the hair shaft and do not fall off the dog. However, adult lice can fall off, but usually do not survive more than a few days if they leave the host. If your dogs are already on a topical flea and tick prevention, this should protect them. Treatment typically takes several applications to kill all the lice as it only works on certain life stages. I hope this information helps you!
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