DD3 (2.5 years old) after taking penicillin which seemed to get rid of her ear infection - but then she developed some other 'unknown' infection and told to give her erythromycin. Anyway, first done - she heaved in the night and threw up bile. she's kind of did ok yesterday but today she's started to be sick again. I know she was sick this morning, this evening she's been sick and before giving her her 4th dose, she's been throwing up everywhere. Should I give her another dose? She's shattered and wants to go to bed - I can't keep giving her baths all night or changing her sheets for that matter. I know this is a common problem, but agh....