Ds had rsv when he was 5 months old and it was awful. We had to do the nebulizer treatments for about a week and the medicine made him wide awake. He was in daycare at the time and got sick every other week. Ear infections, pink eye, and other run of the mill viruses. He built up a strong immune system and now at 9 he gets just minor colds and coughs. He hasn’t had a sick day at school since kindergarten, knock on wood.