Difference between phlegm and mucus:
Mucus and phlegm are not the same even though most people consider them as one. Let me explain, mucus is produce by my body natural as a defense mechanism. For example, mucus traps bacteria from entering the body. But if I over eat bad unnatural foods that cause my body to produce excessive mucus, and then I will have a problem because me cells and organs are going to be deprive of oxygen.
Phlegm carries disease:
Phlegm on the other hand is very hard to get out of the body. When the body has phlegm it is likely that it's a disease because phlegm is disease tolerant and is present when there is a disease first, not after, in the body. When phlegm comes out within your body it will have mucus in it, but it will also include bacteria, engulf or crumble cells and viruses as well. Phlegm is more problematic to your body.