hi, i ve had a sore throat for about 2 days now and last night i went to sleep with my fan on & when i woke up my throat was sore again & i coughed up a chunk of phlegm with a bit of blood in it only a very small amount but still enough to scare me it hasn t happened again although i have been coughing up smaller amounts of phlegm through the day. I am a chronic asthmatic & normally get cold / flu when the cold weather hits like it has in the last few weeks. I normally just assume its a cold again but obviously got a bit worried about the blood. I ve been told its from me sleeping with my mouth open & the fan on it irritated my throat causing it but just wanted to make sure?