I have a 7 month old brown swiss calf its my daughters for her 4h when he was 1 month old he got pneumonia they said they treated him in time, shortly after that he got sick again had a fever of 106 and they said he had a virus, they treated him again but they said he had lung damage, now we are at 7 months of age, he has gained some weight, looks alot better then what he did but is not at all filled out like he should be, we have him on appetite booster with the antihistamine , he still coughs and stands there with his tongue out, breaths harder than the other calf we just bought her , my question is is there ANYTHING I can do for him to make him gain weight and look better, I was told ralgro might work but I just dont know anymore please help :x