How an 8 kg dog's size affects the danger
Your Shih Tzu's small size means the detergent has less body mass to dilute in, but their sturdier mouth tissues may resist burns slightly better than a cat's. The real concern is whether they punctured the pod fully — a shallow bite might release less gel than if they crushed it between their molars. Check their face and paws for detergent residue, as dogs often wipe their mouths afterward.
Unlike cats, dogs may keep licking or drinking after exposure, which can help dilute swallowed detergent but also spreads it around their mouth. Use a cup or slow hose stream (not high pressure) to rinse sideways across their lips, letting the water drain out rather than forcing them to swallow. Offer ice cubes if they resist drinking — the cold can soothe irritation.
Why timing matters with pod exposures
Laundry pod gel starts causing damage within minutes of contact. If you saw the bite happen, note the exact time — vets track how long burns had to develop before treatment. Dogs often show distress more obviously than cats: whining, excessive lip-licking, or rubbing their face on the floor are signs of worsening pain.
Even if your dog seems fine after rinsing, the next 2-4 hours are critical. Detergent in the stomach can cause bloating or retching as it irritates the lining. Small breeds like Shih Tzus are prone to dehydration from fluid loss if they drool excessively or refuse water.
The hidden risk of breathing problems
Dogs who shake their heads during rinsing may accidentally inhale detergent droplets. Watch for sudden coughing or wheezing — these suggest airway irritation or early aspiration pneumonia. Breeds with short noses (like your Shih Tzu) are especially vulnerable because their narrowed airways swell shut more easily.
Keep your dog calm and cool during transport to the vet. Panting from stress can push detergent fumes deeper into their lungs. If they're struggling to breathe, ask the vet about oxygen therapy en route — some emergency clinics can meet you in the parking lot with supplies.
What the vet will check beyond the mouth
Vets often examine the esophagus with an endoscope after pod exposures, as dogs sometimes swallow jagged pod fragments. Your dog's 8 kg weight helps calculate safe sedation doses for this procedure. They'll also listen for crackles in the lungs indicating inhaled detergent.
Bring a sample of the same pod type if possible — some brands contain added enzymes that prolong tissue damage. Expect 24-48 hours of monitoring even if symptoms seem mild, as stomach ulcers from detergent can develop slowly. With quick action, small dogs typically recover fully within a week.
The step-by-step response, from the first minute to the vet visit, is in our Laundry Detergent Pod Poisoning in Dogs and Cats emergency guide.