Hello, thanks for your question today! I am Dr. Drew, and I am a licensed veterinarian. I'll be happy to help you in any way I can.
Generally, over-the-counter pain medicines are best avoided in dogs,
but there are some circumstances where using them is unavoidable.
Many vets suggest aspirin, but the side effects can include serious digestive irritation or ulcers, even after just one dose.
I prefer to suggest acetaminophen / paracetamol, dosed at 5mg per pound / 10mg per kg, every 12 hours,
this is generally well tolerated and can help reduce minor pain.
if overdosed there is a risk of liver damage, but at correct doses the risks are rather low.
another benefit is that this will not interfere with prescription medicines that may be prescribed when you see your veterinarian,
whereas aspirin can prevent the use of some prescription anti-inflammatories for many days.