The hot Cheetos are very unlikely to kill you because you'd have to consume insane amounts to get a lethal dose of the capsicum.
It would be impossible to consume enough of the Hot Cheetos to get affected by the Capsicum in the Hot Cheetos and your stomach would hurt long before it become a problem and you'd stop eating them.
You'd likely have to consume thousands of bags of the Hot Cheetos to get sick enough for it to kill you.
So don't worry about it and eat as many of the Hot Cheetos as you'd like because they can sometimes be healthy for you because of the cheese and the Capsicum which can ward off diseases and boost your immune system.
Eating Cheetos When you're congested as well can help clear up the congestion and help you breathe better.