Which coverfx foundation did you use? For myself, I’m using the liquid foundation and it works just like other liquid foundation. As a makeup artist, however, I used the cream foundation on my clients sometimes (esp. for those with sensitive skin).

If you are using the cream foundation, you might want to consider buying a palette and a spatula. I took a tiny bit of the coverfx cream foundation and spread it on the palette. By doing so, I’m warming up the foundation, which makes it easier to work with.

You don’t have to use a brush for either liquid or cream. If you’re not used using a brush, I suggest using wedge sponges or sea sponge (the yellow porous ones). Wet it with water and squeeze excess water. Make the sponge to be damp (not wet) and take a little product with the sponge and apply it to your skin. For areas that need more coverage, stipple the sponge over it.

You might also want to consider getting the coverfx primer to protect your skin (since you said you’ve sensitive skin). The primer makes the application of the foundation smoother as well.

I’m using Shu Uemura’s cleansing oil to take off my makeup. It’s quite pricy, but it’s a huge bottle. Other than that, I used baby oil to remove my eye makeup. It might sound weird, but oil helps to remove makeup and cleanse your skin without striping the natural oil of the face. I heard some people even use olive oil to remove makeup. I’m just using baby oil for my eyes because our eyes are one of the most sensitive part of the face. I always say to my friends “whatever is good for the baby, it’s good for you” =D

Hope that helps!