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Red spots on puppy's stomach despite flea meds. What could it be?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Medium (23 - 60lb) | Male | neutered | 2 months and 16 days old | 7 lbs

My dog has all his shots so far as a puppy and get more next month.. he is on combogaurd which is suppose to be a heart worm and flea protectant.. but these last 2 days I've noticed this red on his stomach ..

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1 Answer

Most Helpful Answer

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Answered By Jenna Beyer, DVM, MBA, cVMA

Veterinarian, Certified Veterinary Acupuncturist

Published on August 3rd, 2017

Comboguard should be adequate flea prevention, but if there are a lot of fleas in his environment, it is possible that Harvard is still being bit by fleas. The pictures you posted look like a skin infection. Puppies commonly get a sterile (no bacterial) pyoderma that will go away on its own. I would continue to watch these little bumps. If they appear to be spreading or if Harvard is licking or scratching at them, then you may want to check in with your vet to see if it is time to start antibiotics. You can try using an antibacterial shampoo to cleanse the area, I like Dechra TrizChlor 4 Shampoo.

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