Pet Health

Why Does My Dog Have A Hot Spot?

Discover the causes of dog hot spots, their symptoms, and effective treatments. Keep your furry friend comfortable and healthy with our expert tips!
Author: Veterinary Team
Dial A Vet
Updated
June 6, 2025
|
Published
June 6, 2025
Dog with a red, inflamed hot spot on its flank, looking uncomfortable and scratching at the area.

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Have you noticed your dog obsessively licking or scratching a red, inflamed patch of skin? These irritated areas, commonly called hot spots, can pop up seemingly overnight and cause your furry friend a lot of discomfort. As a pet parent, it’s natural to worry and wonder why this is happening and how you can help your dog feel better quickly.

⚠️ What to Watch For

Hot spots, also known as acute moist dermatitis, are localized areas of skin inflammation and infection. They can appear suddenly and escalate quickly if not treated. Here are some common signs of hot spots to watch for:

  • Red, irritated skin that may feel warm to the touch
  • Excessive licking, chewing, or scratching at the affected area
  • Hair loss around the lesion
  • Oozing, crusting, or scabbing
  • Your dog appears uncomfortable or restless

Hot spots can develop anywhere on your dog’s body but are most commonly found on the head, neck, hips, and limbs. They can range in size from small spots to larger, more severe lesions.

🔍 Possible Causes

Hot spots don’t appear out of nowhere—there’s usually an underlying issue that triggers them. Identifying the root cause is key to preventing future outbreaks. Here are some of the most common culprits:

  • Allergies: Environmental allergens (like pollen), food allergies, or flea allergies can irritate your dog’s skin.
  • Flea infestations: Flea bites can cause intense itching, leading to excessive scratching and skin trauma.
  • Moisture: Prolonged dampness, such as from swimming or bathing without proper drying, can create a breeding ground for bacteria.
  • Skin wounds: Small cuts, scrapes, or insect bites can become irritated and infected.
  • Underlying health issues: Conditions like hypothyroidism or skin infections can increase the likelihood of hot spots.

According to VCA Animal Hospitals, hot spots can also be triggered by stress or boredom, especially in dogs prone to compulsive licking (source).

✅ What You Can Do at Home

If you’ve spotted a hot spot on your dog, taking action quickly can prevent the issue from worsening. Here are some steps you can take at home to help your dog feel more comfortable:

  • Trim the fur around the hot spot to allow the area to breathe and make it easier to clean.
  • Gently clean the area with a mild antiseptic solution or a vet-recommended cleanser.
  • Prevent further irritation by using an Elizabethan collar (cone) or a soft recovery collar to stop your dog from licking or scratching.
  • Apply a soothing, vet-approved topical treatment to reduce inflammation and promote healing.
  • Ensure your dog stays dry and clean, especially after baths or swimming sessions.

While these steps can help manage minor hot spots, it’s essential to monitor the area closely. If the hot spot worsens or your dog seems increasingly uncomfortable, it’s time to seek veterinary care.

💡 When to Call a Vet

Some hot spots require professional treatment, especially if they’re large, painful, or showing signs of infection. Here are some signs it’s time to consult your vet:

  • The hot spot is growing rapidly or not improving after home care.
  • There is significant swelling, pus, or a foul odor.
  • Your dog seems lethargic, has a fever, or stops eating.
  • Hot spots are recurring or widespread across the body.

During a vet visit, your veterinarian may clean the hot spot more thoroughly, prescribe antibiotics or anti-inflammatory medications, and recommend additional treatments to address the underlying cause. Early intervention can prevent complications and help your dog heal faster.

FAQs

Q: Can hot spots heal on their own?
A: While minor hot spots may improve with proper home care, most require treatment to prevent infection and promote healing. If left untreated, hot spots can worsen and cause significant discomfort.

Q: How can I prevent hot spots in the future?
A: Regular grooming, flea prevention, and addressing underlying allergies or skin issues can reduce the risk of hot spots. Keeping your dog dry and clean is also essential, especially after swimming or bathing.

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References

While every effort is made to ensure the accuracy of this content - including vet review where applicable - this article is for informational purposes only and is not a substitute for professional veterinary advice, diagnosis, or treatment. If your pet is unwell or you are concerned, please speak with a licensed veterinarian. You can book a $49 online consultation with our veterinary team  😄
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