Q. My dog has been not be able to put her back left paw down all day.I checked her paw and leg but there is no blood or anything broken that I feel.
A. It could be something from a spraint if happened after exercise from a luxation or more serious orthopedic problems. My advice is always that if poss the dog has to be resting confined for at least 48h you can give a small dose of Paracetamol but never other NSAIDs (completely forgot Ibuprofen and similars) and if doesn't get better go to your vets for some expertise advice +/- Xrays. Paracetamol/Acetaminophen for dogs dose is 10 mg per Kg, e.g. Dog of 10 kg will need just 100 mg ( 1 part in 5 if you use 500mg tablets) twice a day.