Why do we eat pineapple/take Bromelain prior to fillers to minimize bruising if Bromelain is a natural blood thinner?

I can understand the need to take Bromelain or eat pineapple after fillers, but why consume anything that thins the blood prior to fillers? I am cutting out all other supplements that thin the blood like vitamin E, Gingko, etc. Why add Bromelain when it thins the blood?

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