I’m going to leave the medical part of your question to our vets, but I do have an observation regarding what makes a reputable, ethical breeder.
Unless the person from whom you purchased your puppy titles (as in, they earn titles through showing, obedience trials, etc…not just AKC registration) and fully health tests per the Chihuahua Club of America, they aren’t what I would consider ethical or reputable. Here’s a lot more information: http://www.chihuahuaclubofamerica.org/health-committee-mission/
Read through the links on the right sidebar. And maybe look into an insurance policy to cover potential health issues. Petplan and Truepanion seem to be two of the best…avoid VPI like the plague, they’ll just take your money.
Thank you so much for your response! But I am aware of that – my question is how quickly this happens. So, wiill 24-48 hours make a considerable impact? His ears have been gently cleaned, and he’s been given his allergy meds.
I took him to the emergency vet tonight, they confirmed it was a hematoma, but told me it wasn’t worth worrying about and could just take him to my regular vet in a few days.