5 Powerful Ways to Treat Ringworm in Dogs (Backed by Vets)

Ringworm might sound like a parasite, but it's actually a highly contagious fungal infection that can affect both dogs and humans. If your furry mate has developed scaly patches, hair loss, or itchy skin, ringworm could be the culprit. The good news? It’s treatable – and the sooner you start, the better.

Here’s how to identify and treat ringworm in dogs with 5 powerful vet-approved methods, plus what to do if it spreads to humans.

What is Ringworm in Dogs?

Ringworm is caused by a group of fungi called dermatophytes, which infect the outer layers of the skin, hair, and nails. Despite the name, ringworm has nothing to do with worms. 

It’s most common in:

• Puppies

• Elderly dogs

• Dogs with weakened immune systems

• Dogs in shelters or humid environments

Common Symptoms in Dogs:

• Circular bald spots

• Red or crusty skin

• Itchy or flaky patches

• Brittle or dull coat

• Darkened skin or inflammation

Because it's zoonotic, ringworm can be passed to humans, especially through direct contact or contaminated surfaces like dog beds, brushes, or floors.

Can Humans Catch Ringworm from Dogs?

Yes – ringworm is contagious to humans.
It spreads through skin contact with infected animals or items (like fur, bedding, or brushes). Children, elderly individuals, and people with weakened immune systems are especially vulnerable.

Symptoms of Ringworm in Humans:

• Red, circular rashes with a raised edge

• Itching or burning sensation

• Flaky or cracked skin

• Patches that slowly grow in size

• May appear on hands, arms, legs, or scalp

The rash often looks like a ring-shaped lesion, which is how the infection got its name.

How to Treat Ringworm in Humans:

Treatment for people is usually simple and effective with over-the-counter or prescription anti fungal medications.

Common treatments include:

• Topical creams: clotrimazole, terbinafine, miconazole

• Oral anti fungals: for more severe or scalp-based infections (e.g. griseofulvin or fluconazole)

• Keeping the area clean and dry

Always consult a GP if the infection spreads or doesn't improve after a week of treatment.

5 Powerful Ways to Treat Ringworm in Dogs

1. Get a Vet Diagnosis First

Don’t guess — your vet can confirm ringworm using a Wood’s lamp or fungal culture. Starting the right treatment early prevents it spreading to other pets or people.

2. Use Anti fungal Shampoos

Wash your dog with a vet-approved anti fungal shampoo containing ingredients like miconazole or chlorhexidine 2–3 times a week. Always wear gloves, and clean the bath area thoroughly after use.

3. Apply Topical Ointments

Apply anti fungal creams directly on the lesions as prescribed. This is especially useful for small, localised infections.

Look for:

• Clotrimazole

• Ketoconazole

• Miconazole

4. Oral Medication for Severe Cases

For widespread or stubborn infections, your vet may prescribe oral anti fungal tablets like itraconazole or terbinafine. These are usually given for several weeks and may require follow-up tests.

5. Disinfect Your Home

Ringworm spores can survive in the environment for up to 18 months.

Clean thoroughly by:

• Washing pet bedding in hot water

• Disinfecting hard floors and surfaces with diluted bleach (1:10)

• Vacuuming daily (especially rugs, carpet and furniture)

• Washing your hands after every contact with your dog

Preventing Future Outbreaks

• Keep your dog’s skin healthy with a balanced diet

• Don’t share grooming tools between pets

• Bathe dogs regularly, especially after walks or visits to dog parks

• Quarantine any new pets until they’ve been cleared by a vet

Final Thoughts

Ringworm might be annoying, but it’s very treatable with the right approach. Early treatment stops it spreading, eases your dog’s discomfort, and protects your household — including the humans!

If your dog shows any suspicious skin changes, see your vet. And if you or your family develop red, ring-shaped rashes, don’t panic — just head to your GP or pharmacist for anti fungal treatment.

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