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Why is my dog biting and licking her stomach? Is it fleas or allergies?

Updated on September 23rd, 2025

Pet's info: Dog | Mixed Breed Small (up to 22lb) | Female | spayed | 2 years and 5 months old | 4 lbs

Ellie will not stop biting & licking her stomach area. As you can see through the pics, it’s pretty bad and it breaks my heart. Could this be something internal? I found one flea a while back, but I haven’t seen anymore. What could this possibly be? Her temp is normal. She just won’t stop. Is this a rash? Please provide in detail what this could possibly be. Thank you!

1 Answer

Most Helpful Answer

Dr. Melanie, BVSc MS

Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on June 17th, 2020

Thank you for contacting Petco Pet Education Center, formerly Petcoach with your question about Ellie, and for providing the pictures. They are very helping. This licking is a sign of itchiness. This itchiness can be caused by fleas, mites, ringworm, or allergies. If she isn't up to date on her flea treatment, I can give you one for her. First, I would give her Capstar. It's a one time pill that starts killing fleas within 30 minutes. Then follow up with a spot on treatment, such as Advantage or Revolution. This is a treatment that has to be used once a month. You will also have to disinfect the environment. Wash her bedding in hot soapy water, and vacuum the furniture and carpet surfaces. You can use a spray to kill fleas in the house, such as Indorex, or a flea bomb would work well to kill the fleas in the home. If she is up to date on her flea treatment, I recommend taking her into the vet for an exam today or tomorrow. The vet can do blood tests, skin scrapings, and use a Wood's lamp to diagnose allergies, mites, and ringworm. Once the cause of the itching is found, the vet can prescribe the appropriate treatment. I hope this helps!
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