noun
erythrophobia; fear of blushing
A clinical term for the irrational fear of blushing in social situations; often associated with social anxiety.
赤面恐怖症の人は、人前で顔が赤くなるのを極度に恐れる。
People with erythrophobia have an extreme fear of their face turning red in front of others.
対人恐怖症 is a broader term for social anxiety disorder, while 赤面恐怖症 specifically refers to the fear of blushing.
Compound of 赤面 (blushing) + 恐怖症 (phobia). The exact origin is uncertain, but it follows the standard pattern for naming phobias in Japanese.