Stomach bug, what to do!

I posted earlier about having a stomach bug and if it was safe to continue breastfeeding. Well now my little girl is poorly and has been sick about 5 times in the last two hours. I've tried putting her on the breast but she just keeps throwing it back up, but then she wants to go back on again (probs for comfort) Shall I just keep giving her the breast in an attempt to keep her hydrated?