Why did my dog break out in a rash after a walk?

Read time: 3 minutes

Overview

A rash after a walk is often caused by something your dog has come into contact with, such as grass, pollen, plants, mud, insects or even a new shampoo or wipe used before heading out. It can also be due to irritation from heat, friction or an allergy flare-up. You usually can't tell the exact cause straight away, but checking the pattern and your dog's skin can help narrow it down.

Things To Check

1. Note when the rash started and whether it appears after walks in the same place, at the same time of day, or after a particular type of weather.

2. Look closely at the rash for redness, raised bumps, swelling, broken skin, scabs, discharge or areas that feel warm.

3. Check the paws, belly, groin, armpits and ears, since these areas often show contact irritation first.

4. See whether your dog is scratching, licking, chewing, rubbing or shaking after the walk, as this can make the skin look worse quickly.

5. Think about anything new your dog may have contacted, such as long grass, woodland, hedge clippings, fertiliser, cleaning products or a recently treated field.

6. Check for signs of insects, such as small bites, localised bumps or a rash that seems to appear suddenly.

7. Consider whether anything at home could also be involved, such as a new collar, harness, bedding wash, shampoo or grooming product.

Common Causes

The most common cause is contact irritation from grass, pollen, plants or other outdoor allergens. Some dogs react to certain areas more than others, so the rash may keep appearing after the same walk.

Insect bites or stings can also cause a sudden rash, especially if the skin looks bumpy or your dog seems itchy soon after coming back in.

Less commonly, a dog may be reacting to heat, friction from a harness, muddy or contaminated ground, or a grooming product used before the walk. If the rash keeps returning, a skin allergy or another ongoing skin issue could be part of the picture.

What To Do

Wipe your dog down after the walk with a clean, damp cloth if they have been in grass, pollen or mud, then dry them gently. Keep an eye on whether the rash settles within a few hours or keeps spreading.

Try to avoid the same likely trigger for a few days if you can, and make a note of when the rash appears so you can spot a pattern. If your dog is licking or scratching, try to reduce rubbing and keep the skin clean and dry.

If the rash is mild and your dog seems well otherwise, careful observation is often the most sensible first step. If it keeps coming back, that pattern is useful information to share with your vet.

Products That May Help

If your dog often comes home with skin, coat, paw or odour concerns after walks, a routine-focused grooming and cleaning collection may be useful as part of your day-to-day care.

Pet Care

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