Pathological blushing stemming from irrational anxiety. Some symptoms include: dizziness, dry mouth, increased/excessive sweating, nausea, an increase in your heart beats, problems breathing, an overall feeling of sickness, issues speaking or thinking accurately, loss of control over your nerves, detachment from reality, or last of all…anxiety attacks.
Here is a website that has articles, symptoms and other helpful hints: http://www.phobia-fear-release.com/erythrophobia-treatment.html
This website offers some techniques for prevention of this issue: http://www.ehow.com/how_4920433_prevent-face-blushing-erythrophobia.html
Fournier, G. (2010). Erythrophobia. Psych Central. Retrieved on September 1, 2015, from http://psychcentral.com/encyclopedia/2008/erythrophobia/