Our Lab Betsy (2 1/2) years old,has open wounds developing on her back legs. We have had her to two diffrent vet's,and she seems to be improving now. In two days time it went from a small blister to a mass of open leasons ( like a flesh eating virus). The test have ruled out Blastomycosis,and we are waiting on culture results from more samples. Have any of you had this happen to your Lab?