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Why is my puppy's face, eyes, and mouth swelling on and off?

Updated On September 23rd, 2025

Pet's info: Dog | Chihuahua | Female | unspayed | 4 months and 4 days old | 3 lbs

My puppy’s eyes and mouth have been swelling on and off all day. The first one is very recent and the second two are from this afternoon

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1 Answer

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Answered By Sarah Derksen, DVM

Veterinarian

Published on October 19th, 2019

Poor Lola. This looks like either an allergic reaction, infection, or juvenile pulpy strangles ( cellulitis). This type of swelling, or cellulitis, manifesting as marked swelling of the muzzle, eyelids, and face in a puppy between the ages of 3 weeks and 6 months of age. It then can even progress to lymph nodes, causes a fever, etc. I would start with an exam with your veterinarian and go from there.

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