Although folks often use all a few conditions interchangeably, there is actually a slight difference between them. Mucus is a general time period referring on the substance produced by mucous membranes anywhere in the body. Phlegm and sputum equally refer to mucus produced in the lungs and decreased respiratory tract. https://heads-for-electric-toothb43208.newsbloger.com/24711875/not-known-facts-about-prednisone-inhaler-ati