I think hyperpigmentation (brown spots, and in a larger form known as melasma) is the most difficult thing to cover. Somehow, it always manages to bleed through whatever you put over it. You’ll have to try several methods to see what works for you. Here are some of them.
1. Sometimes just a layer of minerals will be enough to disguise it so that it isn’t the first thing someone notices. You can also try putting Amazing Base on as a wash. Spritz our flocked sponge with one of our facial sprays and then pick up the loose powder. Smooth it over your skin and wait for it to dry. Then brush some dry minerals on top.