Do good

Do good. Be beneficial for. e.g. People should exercise regularly. Exercise does you good.

Make vs. do. So the basic rule is:

Make = producing, creating or building something, a mess, a cake 

Do = carrying out something in general, often daily activities, a job, the housework, etc.

But make and do are also the basis of lots of standard expressions:

MAKE plans, a mistake, money, an excuse, noise.

DO a favour, business, good.

Why don't you review the make and do expressions and test yourself with a quiz or two?