Mid/Side EQing

I’m abit unsure about how to approach this. What instances would I need to boost freqs at the sides/mid? Is this a technique used mainly for problems or generally used to enhance freqs in the mix?

It can be used creatively but generally it is a problem solverbr
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you can use it to make the lower freqs of a bass more mono or spread the tops out etc.br
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i think you have to be careful as it can sound un-natural quite quickly.br
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not something i use very much.

Thanks Phil, is it the same sort of thing for mid/side compressing?