my dog sprained her back left hock about 2 months shes coming on i brought her on a small walk about an hour ago i can see a small but not much of a limp in there i let her of the lead she flew around for no more that a minute i put her back on the lead as i didnt want her to hurt herself would it b to late now to blister it even tho shes walkin on but not a 100 % shes been in since it happend