A question about Ovex please

[northernmonkey]

So yesterday i found that my ds2 has the dreaded little buggers
Thankfully i had a bottle of Ovex in the cupboard and the whole family had a dose, all beds were stripped and my washing machine has been on constant since
The problem is dd went to bed last night and was sick. Should i give her another dose today to be on the safe side or just wait untill we re dose in 2 weeks

How many hours after the Ovex was she sick?
Sounds like quite a while, which means I would probably leave it, it will have been absorbed already.

It was about 3 hours. I haven't given her any more but we've seriously upped the hygiene in the house.