Treatment for red rash on neck and chest when I am under pressure

Whenever I am in an uncomfortable situation, around new people, talk in front of groups, I always get a red rash on my neck and chest that is very uncomfortable and embarrising.  It only stays around for an hour or so but I'm not sure what if anything I can do for my problem.  I have experienced this rash 50 or more times over many many years.

Any comments or responses are greatly appreciated.

[cj29]

Social anxiety can be a bear; many people have it especially when talking in front of groups.  Have you ever tried to confront the issue through various exercises or talk therapy?  I remember back in college they even offered courses on improving your public speaking abilities, so don't think you are alone in experiencing this.  Talking publicly comfortably sometimes takes a lot of practice!

[Pum]

I get this too. Not sure there is much to be done about it other than wearing polo neck jerseys.

Good luck.