How about the Lemsip cold and flu tabs? I'm sure they're just herbal - I'll have to find them in the morning to be sure - but I know the night time ones only have a certain herbal treatment to help you sleep - valerian I think it is? Don't quote me, but I'm sure it'd be fine to take - and like the other ladies said, it should be ok

Do what you feel comfortable doing

Hope you're feeling better soon
Bec