Sorry, have rung NHS direct as googling got me into a right old state
Have been taking cefalexin for mastitis - 5 days worth didn't knock it out and so then they prescribed 7 days at a much higher dose.
I've been having stomach cramps for 3 days so stopped taking them yesterday morning (after completing 5 days worth) but since then am still having urges to go to the toilet and when I do there is some blood.
I looked it up and it said this could be a rare and severe complication of the cefalexin...caused by overgrowth of C difficile in the intestine...so I am now in a complete state.
NHS said that even if it is this (pseudomembranous colitis) then it usually responds to just stopping the medication. But mine hasn't stopped, in fact it seems worse than yesterday.
Heeelp.