Dr Karan Rajan has issued a warning on social media about a symptom that can appear on the face after drinking alcohol.

He asked: "Do you ever get red in the face when drinking alcohol? Content cannot be displayed without consent "This is a genetic software glitch called the alcohol flush reaction, and it's a ...

Following is a transcript of the video. Here's why some people turn red when they drink. It's a condition called "alcohol flush reaction." Side effects include flushed skin, nausea, headache ...