Not a nurse or anything, but I think the baby rub would be ok in moderation. I'd steer clear of the adult vicks though, that stuff made me feel like my chest was on fire (I can use the baby stuff on me with no issue, kinda like the smell actually).
When DS was sick when he was that small (not RSV, but he had a cold) the only way I could get any sleep myself was to have my hand resting on him so I could feel the breathing motions even though I couldn't see them.