For the scar? Im not sure how much I can explain but I can try.
Make sure the skin is dry.Not oily.
Make sure the eyebrow is covered, as well as any hair. Liquid Latex sticks to hair.
For the eyebrow I used Kryolan eyebrow stick.
Take liquid latex, dip a q-tip into the tube. Have a piece of tissue paper or toilet paper ready.
Apply the latex to small areas. It dries quickly so only apply to maybe a cm squared area at a time.
When the latex is still wet, rip a tiny piece of paper and stick it on. make sure it wrinkles, to mimic a burn texture.
It is okay if parts of the paper do not stick, it just creates more texture that way. So long as the edges of it stick, it'll hold.
Continue this process all the way to the ear, careful to avoid getting the latex in hair, as well be mindful of the eye.
When the initial layer is done, let dry for 5 minutes.
Tap it lightly with your finger, if it is dry, it's ready for makeup.
Begin with a layer of Kryolan red. I used Aquacolor with a foam brush.
Brush it lightly over the scar, so it clings to the raised edges.
Let dry.
Dampen brush, go in again hitting any missed areas.
When the entire scar is red or pink, go in with a VERY small bit of blue.
Spread it quickly, use water if necessary. What the blue does is blend and make purple, like a bruised colour.
Go in with white once it is all dried, hit just the major tips of the raised portion of the scar. Foundation could work as well.
when it is all done, Go in and blend the edges where the scar hits your actual face,
If it seems to red, take foundation on your finger tip, a and spread it around. Pat it down, dab it down,but never rub.
Does that work?