Concerns over Flooding

With extra rain comes flooding, and with the rising water comes a new set of concerns for our pets. It pushes the wildlife and rodents into contact areas with pets, and flying insects love the added moisture. As pet owners, what should be our biggest concerns?


Mosquitoes love the new wet areas to reproduce and thrive. Using Pyrethrin sprays is one way to repel mosquitoes successfully and prevent them from landing on your pet. Pyrethrins are very safe, but they do not last more than one or two days. If you are jogging or heading to the park, spray them before you go to keep your dog comfortable. This product is fine for cats as well.

When you're at home, using 2 tablespoons of apple cider vinegar in a glass of water or using a few drops of lavender oil will help repel pests on the deck or in the kennel area. These products work well with Pyrethrins, but they are seldom enough by themselves.


Heartworm disease will also increase with the mosquito problem. Mosquitoes carry heartworm and transfer them to your pet when they feed. Be sure your pets are on a monthly heartworm preventative, and talk to your vet about increasing the dose if your mosquito issue is extreme. In some areas of the south, increased dosage is already being used to combat the heartworm exposure.


Leptospirosis or “Lepto” is a bacterial infection that is shed in the urine, and urine-contaminated water is ideal for Lepto survival. Rodents and raccoons are the main shedders of Lepto after flooding, but many mammals can get Lepto, including humans. Dogs with Lepto have kidney and liver issues that are hard to treat, and they often fail, resulting in death. If the dog survives, he may carry Lepto and become an intermittent shedder for the rest of his life. Pregnant dogs that are not protected will abort in late pregnancy from Lepto.

The healthiest options for prevention are vaccines and simply avoiding drinking run-off water. Two-way and four-way vaccines are available according to what Lepto strain is in your area. For breeding dogs located in Lepto areas, they should be vaccinated with a minimum of a two-way Lepto vaccine to prevent abortion. The Lepto vaccine also has a history of being reactive, so watch your dogs closely post-vaccination until you are comfortable with using it.


"Hot spots" get their name because the lesions are warm to the touch. Also called Pyotraumatic dermatitis, this acute, rapidly developing surface bacterial skin infection occurs as a result of self-inflicted trauma. Hot Spots are common with hot, humid weather. Fleas are the most common stimulus but hot wet weather, long thick coats, allergies and anything that causes scratching can start the hot spot. It is rarely seen in cats.

When treating hot spots, clip the hair from the lesions, then gently cleanse with a medicated shampoo such as Doc Roy's Medicated Shampoo or Hexadene Shampoo to soothe the itch. Apply topical medications twice daily to lesions. A steroid medication will be helpful with the itch, but avoid medications that dry out the wound or contain alcohol, as the sting will draw attention to the site.


Ringworm, a fungal infection, also increases with the hot humid weather. Fungal infections are soil-born but require rougher surfaces to attach. Bruising, scratches or hot spots can give fungal infections that foothold on skin. Shampooing and treating the dog with lime sulfur dips will soothe the itch and kill the ringworm spores on the coat. Topical lesion treatment with an antifungal like Griseofulvin will speed the cure. Some animals require oral Ketoconazole to get rid of the issue. Cats are especially susceptible to ringworm.


Bacterial infections are also common with flooding, and disinfectants are important to keep them in check. If your kennel area is flooded, you need to use a good disinfectant like Trifectant, being careful to thoroughly clean and disinfect any moldy areas. If you have any questions about disinfectants, feel free to talk to our customer care representatives!

If you need help, call us at 1-800-786-4751.

-Dr. B
Don Bramlage, DVM, Director of Veterinary Services at Revival Animal Health

The materials, information and answers provided through this website are not intended to replace the medical advice or services of a qualified veterinarian or other pet health care professional. Consult your own veterinarian for answers to specific medical questions, including diagnosis, treatment, therapy or medical attention.

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