You're welcome
If you find the right shade, you really can put makeup on your arms. I use the TrueBlend makeup (I forget who makes it) and the color blends in with your skin tone.
I got a spiderbite on my arm months ago and used that to "hide" it so I wouldnt play with it.
Have you also considered putting bandages of some sort on your arm? I dont know how large it is on you, but ace bandages work well, and they dont look so "unsanitary" like regular band aids do.
For me, the key is to cover it up somehow.
