What are somethings I can try to stop my 2 month old from spitting up so much?

As soon as he swallows the formla and breast milk comes right back up! Its like a waterfall of formula after every feeding! Im sick of having to wash his clothes every other day, wiping up puck off the couch, the carpet and him!
Update: I was giving him Similac regular formula, then he broke out with a rash so i switched to nestle soy.
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