need.medical advice...

steve they will get infected at times . but the dogs usually do more damage to there selvs trying to get them out . i had a thorn about an inch and a quarter in my thigh for i don't know how long or when i got it . when it finally pushed out enough to raise the skin i felt it lol . it hurt like hell when i touched the bump . i broke the skin and sqeezed it out . i couldn't believe it was as big as it was and i didn't feel it go in . but the wound on your dog looks clean i would just keep it on antibiotics and put a good salve or something on it . wrap it for a bit but don't leave the wrap on . the dog will pull it off anyway but it will give the salve time to work . might squirt a little pen right on the wound before putting the salve on it . that looks like a mesquit or black locust thorn from the size of it and they will give some people and dogs a bad infection .