Your questions are not at all silly but always important and I am sure helpful to other parents on this forum.Your baby son is still struggling to get over his RSV infection and may already have had another cold or repeat RSV infection as well.Being at a creche especially during the winter months is a problem for many young children who are susceptible to viral infections.He sounds as if he has had a recent tracheitis infection with his barking cough. This cough can take as long as 6 weeks to settle.Your baby does not sound like an allergic child and your observation that he is still stuffy nosed over weekends is a good clue that he is not allergic to cats.It is vital to try to keep his nose clear by using saline nose drops such as Salex at least twice a day. If his nose is very stuffy and full of mucous he will benefit from sucking out some of the mucous with an infant nasal aspirator such as the Nosefrida.
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