Coffee does have a diuretic effect. Tea's better if you fancy a hot drink, fruit tea better than that. Milk is brilliant at rehydration and replacing lost bits and bobs too.
It's hard to believe, I know, but I'm not. Why, does you have an embarrassing ailment you'd like someone to take a look at? Just post a photo, I reckon we can work out what it is.
Coffee does have a diuretic effect. Tea's better if you fancy a hot drink, fruit tea better than that. Milk is brilliant at rehydration and replacing lost bits and bobs too.