Just what is Chemtrail Flu? Chemtrail Flu (also associated with Chemtrail Cough) is catching flu like symptoms after being outside during chemtrail spraying. The more spraying that goes on the higher rates of Chemtrail Flu people are experiencing. It is usually associated with flu symptoms that can last up to 3 weeks, and also cause coughing and allergies, including skin rashes. It appears to be a new flu virus that is being sprayed from above because people are getting sick with a new type of flu after being exposed to excessive spraying. Maybe it is happening because people are waking up to the dangers of vaccines