Vet Approved Guide: 5 Things Not to Do During Your Dog’s Cancer Treatment 2025 🐶🐾 

By Dr. Duncan Houston BVSc

Hearing your dog’s cancer diagnosis is overwhelming, and it’s natural to want to take every possible step to help them. But even the best intentions can sometimes hinder treatment—or your dog’s quality of life. Let’s explore five critical “don’ts” during the cancer journey. 🛡️

1. Don’t Start Any Supplements or Medications Without Your Vet’s OK

It may seem helpful to introduce “natural” supplements, but these are unregulated and can interfere with chemotherapy or other medications. Some may reduce treatment effectiveness or even harm your dog’s health. Always discuss anything new with your primary vet or oncology specialist first.

2. Don’t Overfeed—Even with “Comfort” Foods

Some dogs will lose their appetite during treatment; tempting as it is to spoil them, overfeeding can lead to gastrointestinal upset or weight gain, exacerbating issues like arthritis or respiratory challenges. Shower love without the extra treats.

3. Don’t Isolate Yourself—Find Support

You may face judgment—people who believe treatment is selfish. Don’t go it alone. Reach out to fellow pet parents who’ve been there (online groups, local meetups, vet-recommended communities) for emotional support and practical guidance.

4. Don’t Skip Social Restrictions During Immune Low

Chemotherapy can cause temporary drops in white blood cell counts. During these vulnerable periods, avoid dog parks, groomers, boarding, or exposure to large groups—enemy number one is infection.

5. Don’t Be Afraid to Ask Questions

No question is too small. Whether it’s about side effects, daily care, costs, or red flags—ask your veterinarian. Preparing a list and staying engaged empowers you to advocate effectively for your pet.

📘 Bonus: Key Questions to Ask Your Vet

• 📍 “What type of cancer does my dog have, and where?”
• 📍 “What treatment side effects should I monitor?”
• 📍 “How do I support them emotionally and physically at home?”
• 📍 “What’s the cost, and are there budget-friendly alternatives?”

These questions help you make informed, compassionate decisions.

📱 Tools to Support Your Pet’s Care

• Ask A Vet: 24/7 veterinary advice for any concerns. 🩺

🎯 Final Thoughts

You’re already doing the most important thing: caring deeply. By avoiding these five common pitfalls, asking questions, and leaning on support systems, you're giving your dog the best quality of life possible during treatment. 🐾

For ongoing help, download the Ask A Vet app today. 📲🐶