so i'm using nu-stock on one of my young hounds and everytime i put it on him he licks it off,well yesterday i called my self outsmarting him by mixing nu-stock with vasaline and laying it on super thick so he couldn't get it all off.today i noticed he wasn't feelin' good and not eating but all the nu-stock was gone so i put his leash on gettin' ready to take him to the car and off to the vet well on the way to the car he starts throwing up some white shit.after he finish i notice he starts feelin' better,jumpin and movin like he has his step back so i walk him over to his food bowl and he doesn't eat his food but he starts eating that old dead grass and throws up that white shit again so i tell my wife to bring out a can of tuna so i can mix it with his regular feed.after about 10-15 min he starts to nibble on his food but he's not diving in like he normally does but is drinking plenty of water.what else can i do to help his appetite?