ergh that user interface looks like a complete nightmare, i had the same issue with Adobe Premiere Pro. try youtube for user guides.
i also get this red thing sometimes but haven't had it for a really long time, only thing i'm doing different is cutting out dairy so maybe try that?
i'm pretty sure it's hormonal and dairy contains cow hormones which stimulates the same hormones in the human body.
you might find this same thing is causing acne and other related skin complaints (to do with things getting blocked)