It looks like you are using an older version of Internet Explorer which is not supported. We advise that you update your browser to the latest version of Microsoft Edge, or
consider using other browsers such as Chrome, Firefox or Safari.
Knowing what causes symptom flares can help keep them under control.
A trigger is anything that sets off your symptoms. Since we are all special snowflakes, triggers are different for everyone, but stress, smoking, fatigue and infection are a few of the usual suspects.