Colours for the Practical doctor - LARPer QuickTip no 78 

Precisely ;) personally I also prefer white, since one can see the blood and is a more traditional medic colour. Red or black its also only if you want to hide the blood. A friend plays a Doctor character and it got the point where other characters treated him as a mad man, because he always had blood on his clothes... Well that and the fact the character might be a mad man :)