Dog scratching, licking, red spots near penis. Fleas or allergies?

Question

My dog has this pinkish dry skin on his penis, as well as some small orangey/red spots on his underside by the penis / inner hind leg. He recently had fleas and received a flea treatment, but not sure if he still has fleas. He’s been scratching a lot and licking himself down there a lot. Is there anything we can do to help him? Pet's info: Dog | Shih Tzu | Male | neutered | 4 years old | 16 lbs

Dr. Massimo Orioles, DVM, Cert AVP, MRCVS · Accepted Answer

This could be due to an allergy, although it could also be infection or mites. + I would recommend the following: + Flea treatment should be prescribed by a veterinarian. It is often combined with lungworm/intestinal worm treatment. Ensure all pets in the house are up to date and treated as per the frequency recommended + If your parasite treatment has lapsed, or you have an infestation, treat the house with an insecticide spray such as RIP flea/Acclaim/Indorex/Frontline house spray. These sprays are toxic to cats and reptiles/fish/birds so please follow the instructions on the bottles carefully + If the itching continues despite the above it would be recommended to start on a hydrolysed food trial with Purina HA, Hills z/d, or Royal Canin Anallergenic for 6-8weeks. This must be fed strictly and exclusively to see if it works, which means absolutely no treats or human foods otherwise the results are inconclusive + If all of this makes no difference then you will need to discuss investigations into environmental allergies with your vet, or be referred to a dermatologist + If a food allergy is ruled out then consider a skin diet (Royal Canin skin/Hills Derm Defence) or a skin supplement such as Yuderm, to help boost the skin barrier and prevent/reduce flare ups in the future. The following products can be found online and can be tried as a first line approach: Douxo PS Calm shampoo, Essential 6 spot on by dermoscent, Krillex Krill oil chews.

Dog scratching, licking, red spots near penis. Fleas or allergies?

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