If it’s prescribed by your vet, sure.
If not, I wouldn’t. I would, instead, keep the doors and windows shut, blinds down, AC on, and run the TV or radio. A trick I saw mentioned was pop a bag of popcorn (the all natural stuff, not the stuff loaded with butter sauce) and every time fireworks go off, make it rain popcorn.
I would also invest in a Thundershirt if you don’t have one already.
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.
We have had the pups repeatedly checked for fleas by vet and there are none. Both are indide dogs do no infestation ftom outside, dont even go outside. Been on Sentinel for protection since she was big enough to start and our 18 month old has always been on monthly Trifexis for prevention. Luckily even with continued presence of worm still is gaining weight and only loose stool was after surgery to spay and antibiotics were given. Just frustrating that we are doing all we can and still cannot get rid of. Wondering if I need to take to different vet.
We took two separate stool samples in to the vet, then while my wife had the pup there a small worm was left on her shirt by the pup. Vet said it was a tapeworm so I’m assuming that’s what it is.
But after multiple shots, multiple doses if sentinel, a month on For-Bid to prevent her from eating her feces and reinfesting I’m at a loss. Also weird that it goes days sometimes but no worm, then suddenly they’re back.
Plus had deurontinal more times than I can count.