This seems like a friendly place

One thing I'm having trouble with is applying it in the little dents on the sides of the base of my nose. I've got spider veins there that need to be covered. I thought the Flat Top Kabuki brush would get in there, but it doesn't. I used a crease brush to get in there and ended up applying too much, it got caky, and there wasn't really any way to buff it away. Maybe the Bamboo Blending Brush or the Flat Concealer/Eye brush would work? I'm pretty sure that the brush I used has natural bristles. I've used it to apply some other powders successfully, but this didn't work.
How do you go about applying the all-purpose foundation wet? Do you spray your face, the brush, or both, and if so, with what? Or can you just dampen the brush under the faucet and get rid of the excess water with a tissue?
On humid days my forehead can start sweating before I can get my makeup on, and then I have a mess, especially since I really need to blend my foundation into my hairline. Even if I blot every few seconds with a tissue, my forehead keeps dampening up. Anyone else have this problem? I haven't figured out what to do when I don't have time to sit down and cool off.

Any suggestions would be appreciated.