I have 3 Labradors all English. Dougal slipped the other week and seemed to of pulled his back leg out. It appeared to get better then it seemed like he was in discomfort again. We took him to the vet who said (No Xrays were done) that it was a possible sprain or torn. Dougal was given 10 days of Deramaxx. It has made no difference. We were excited the 1st 2 days he was running around as normal.... Then he went back to limping he may of sprained it again playing with the other 2 dogs (He is 2 years old) We are thinking if it comes and goes it might be a sprain rather than torn. My question is how long does a sprain take to heal and any tips that might help recovery. Thank you very much in advance.