no the secondary symptoms,runny noses and eyes,should go away,but if theres infection in the eyes then you still may have to use the terramycin.if this is respitory,please close your flock and dont let any birds leave your property.you dont want to give this problem to someone else..ive been dealing with it for about a year now and have only had to treat 3 individual birds,so for me it hasnt been a big deal.