All of a sudden I've had very itchy bumps all over both of my arms. I've been using the same skin care routine & products for months now. I did do a play a week ago where I had latex on my room, & reused the same chunks of latex, & there was a lot of makeup involved. But I only had the makeup on one of my arms, but these bumps are on both. Does anyone know what it is, if I should go to the doctor & how I might be able to treat it at home? Thank you :)