Hi,my husband saw our g.p yest (friday) & was told he has an infection in his knee/leg, he has been put on to flucloxacillian 500mg he s had a total of 7 tablets, the g.p said if it got worse then go to the hospital, to me the pinkness on his leg is getting larger how long should i wait before taking him to the hospital, he says he feels washed out as i d expect from an infection, he vomited this morning, i gave him a cyclizine he s not been sick again,