I have a little Silkie who is sneezing, breathing funny, has a little goo around the eyes, listless, not eating or drinking. I have Tylan 50 and am willing to do injection or orally. Thing is, she is really small because she hasn't been eating much in the last week. (All her siblings are three times her size.) I can't find anywhere on the internet or BYC for an amount smaller than a bantam chicken. Help please! She is my daughter's favorite little pet!!