Bee Stings and Your Dog:
San Francisco Dog Owners Need to Know

Posted by The San Francisco Dog Walker

It is very common during spring and summer that dogs will have swollen faces with eyes that are nearly closed up. In most cases, this is from a bee sting, though it can also be from vegetation allergies or other insect bites. Dogs are naturally curious creatures, and they love to snap at flying insects—unfortunately, bees, wasps, and hornets don't appreciate the attention.

After 19 years of professional dog walking in San Francisco, I've seen countless bee sting reactions, from mild swelling that resolves quickly to severe allergic reactions requiring emergency veterinary care. Here's everything you need to know to protect your dog and respond effectively if they get stung.

Why Dogs Get Stung

Dogs are naturally playful and curious, and moving objects trigger their prey drive. A buzzing bee or wasp is irresistible to many dogs—they'll snap at it, chase it, or try to catch it in their mouths. This is why most bee stings in dogs occur on the face, mouth, or paws.

Common scenarios include:

• Snapping at flying insects: Dogs try to "catch" bees they see buzzing around
• Stepping on ground-dwelling bees: Yellow jackets and other wasps nest in the ground
• Investigating flowers: Dogs sniff flowering plants where bees are feeding
• Disturbing nests: Dogs accidentally get too close to wasp or hornet nests

Recognizing a Bee Sting Reaction

Most bee stings in dogs cause localized swelling, redness, and discomfort. The severity of the reaction varies depending on where your dog was stung, how many times, and whether they have an allergy to bee venom.

Mild to Moderate Reactions

These are the most common reactions and usually aren't life-threatening:

• Facial swelling: Especially around the muzzle, eyes, or ears—this is the classic "bee sting face"
• Localized swelling: At the sting site, which may be on a paw, leg, or body
• Redness and heat: The area around the sting becomes inflamed
• Pain or discomfort: Your dog may paw at the area, whine, or act distressed
• Hives or welts: Raised bumps appearing on the skin beyond the sting site

Severe Allergic Reactions (Anaphylaxis)

Some dogs are allergic to bee venom and can develop anaphylactic shock, which is a life-threatening emergency. Watch for these signs:

• Difficulty breathing: Wheezing, excessive panting, or labored breathing
• Severe facial or throat swelling: Can block airways
• Vomiting or diarrhea: Indicates a systemic reaction
• Excessive drooling: Can indicate swelling in the mouth or throat
• Collapse or weakness: Your dog becomes unsteady, disoriented, or collapses
• Pale gums: A sign of shock
• Rapid heart rate: Or very weak pulse
• Seizures: In extreme cases

What to Do If Your Dog Gets Stung

Step 1: Remove the Stinger (If Visible)

Honeybees leave their stingers behind, but wasps and hornets do not. If you can see a stinger:

• Use a credit card or your fingernail to scrape it out sideways
• Don't use tweezers—squeezing can release more venom
• Act quickly—the faster you remove it, the less venom is injected

Step 2: Administer Benadryl

In most cases, an antihistamine such as Benadryl (diphenhydramine) will reduce the swelling and discomfort rapidly. The general dosage is 1 mg per pound of body weight, given every 8-12 hours. For example:

• 20-pound dog: 20 mg (one standard adult Benadryl tablet or capsule)
• 40-pound dog: 40 mg (two standard tablets)
• 60-pound dog: 60 mg (three standard tablets)

Important: Always consult with your veterinarian before administering any medication for the first time, as individual dogs may have different needs or contraindications. However, in an emergency situation where you can't immediately reach your vet, giving Benadryl is generally safe and can be life-saving.

Use only plain diphenhydramine: Make sure you're using regular Benadryl, not the "Benadryl Plus" formulations that contain other medications like decongestants or acetaminophen, which can be toxic to dogs.

Step 3: Apply a Cold Compress

• Use a cold, wet cloth or ice pack wrapped in a towel
• Apply to the swollen area for 10 minutes at a time
• This helps reduce swelling and provides pain relief

Step 4: Monitor Closely

• Watch for signs of an allergic reaction for at least 2 hours
• Keep your dog calm and quiet
• Offer water but don't force it

Step 5: Call Your Vet

Contact your veterinarian to report the sting and get guidance, especially if:

• This is your dog's first bee sting (you don't know if they're allergic)
• Your dog was stung multiple times
• The sting is in the mouth, throat, or face
• Swelling is severe or spreading
• Your dog seems distressed or uncomfortable

When to Go to the Emergency Vet Immediately

Skip calling and go straight to the emergency vet if you see:

• Difficulty breathing of any kind
• Collapse or extreme weakness
• Vomiting or diarrhea
• Severe swelling that's rapidly getting worse
• Pale gums or tongue
• Seizures or disorientation

In severe cases, your vet will administer treatment with cortisone injections or even epinephrine for life-threatening reactions. If you notice difficulty breathing, severe swelling, or signs of shock, don't wait—get to a vet immediately while giving Benadryl on the way if you have it.

Prevention: Keeping Your Dog Safe from Bee Stings

While you can't prevent every bee encounter, you can reduce the risk:

During Walks

• Keep your dog on leash so you can redirect them away from flowering plants where bees congregate
• Avoid walking during peak bee activity hours (mid-morning to early afternoon)
• Train a strong "leave it" command for flying insects
• Watch where your dog steps—ground-nesting wasps are common in parks
• Avoid areas with clover or dandelions in bloom—these attract bees

In Your Yard

• Check for wasp or hornet nests and have them professionally removed
• Inspect your yard before letting your dog out to play
• Keep flowering plants away from high-traffic dog areas
• Fill in holes in the ground where yellow jackets might nest

Important Warning About Insect Repellents

Many people wonder about using insect repellents on their dogs. However, it's critical to know that human insect repellents like OFF are NOT safe for dogs. They contain DEET, which is poisonous if ingested by dogs, and we all know dogs lick themselves constantly.

Instead, consider using veterinary-approved products like K9 Advantix, which repels mosquitoes, ticks, and fleas. However, these products don't specifically repel bees or wasps. The best protection is vigilance and training.

What About Dogs with Known Bee Allergies?

If your dog has had a severe reaction to a bee sting in the past, talk to your veterinarian about:

• Keeping an EpiPen at home for emergencies
• Pre-medicating with Benadryl before high-risk activities
• Carrying Benadryl with you on all walks
• Identifying the closest emergency vet to your home and regular walking routes
• Avoiding high-risk areas during peak insect season

San Francisco-Specific Considerations

San Francisco's parks and open spaces are generally wonderful for dogs, but certain areas have higher bee activity:

• Stern Grove: Beautiful flowering plants attract bees
• Golden Gate Park: Gardens and meadows have high bee populations
• Fort Funston: Ground-nesting wasps in sandy areas
• Presidio: Flowering trails and picnic areas

Our mild year-round climate means bees are active longer than in other parts of the country. While peak season is spring through fall, you may encounter bees even in winter on warm, sunny days.

The Bottom Line

Bee stings are a common part of dog ownership, especially during warmer months. Most stings cause mild, temporary discomfort that resolves with simple first aid. However, it's essential to know the signs of a severe reaction and be prepared to act quickly.

Keep Benadryl in your first aid kit, know the dosage for your dog's weight, and have your vet's number (and the nearest emergency clinic) programmed into your phone. With preparation and quick action, you can keep your dog safe and comfortable even if they do have an unfortunate encounter with a bee.

Most importantly, trust your instincts. If something seems wrong or your dog seems distressed after a sting, don't hesitate to call your vet or head to the emergency clinic. It's always better to be overly cautious when it comes to your dog's health.