Phlegm often occurs due to an infection of the lungs or sinuses, such as strep throat, the flu, sinusitis or the common cold, according to Healthgrades. Allergies, inflammation, tonsillitis, reactions to some medications, exposure to secondhand smoke, trauma, asthma, gastric reflux, bronchitis or laryngitis can also cause phlegm. Additionally, pneumonia, cystic fibrosis, tuberculosis, airway obstructions, cancer and congestive heart failure are some other, more serious, underlying causes of the condition.Continue Reading
Everyone produces phlegm on a daily basis, and it is a natural body process that is not noticeable until some type of illness causes phlegm production to increase to a perceptible level. As explained by Healthgrades, some infections cause phlegm to amass to such a level in the air passageways that it becomes difficult to breathe properly. If this is a concern, or if phlegm turns to an unusual color, contains trace amounts of blood, and does not clear up over time, it is important to seek medical attention and obtain a doctor's diagnosis of the condition.
Common causes of phlegm often produce additional symptoms, such as fever, sneezing, cough, watery eyes, nausea, fatigue, sore throat, headache and muscle aches, notes Healthgrades. Phlegm that is accompanied by throat swelling, chest pains, shortness of breath or facial inflammation constitutes a medical emergency. Additional causes for concern include rapid heartbeat, personality changes, difficulty swallowing and speech alterations.Learn more about Pain & Symptoms
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Causes of swelling in the upper lip include infection, such as herpes simplex, as well as allergies or trauma, according to Healthgrades. Other causes of upper lip swelling include medical conditions such as lip cancer and Melkersson-Rosenthal syndrome.Full Answer >
Phlegm is a substance similar to mucus that occurs in the lower respiratory system leading to the lungs, states Everyday Health. Unlike mucus, phlegm doesn't typically appear in the throat and sinuses unless a person coughs it up. Coughing up phlegm is usually a symptom of pneumonia or bronchitis.Full Answer >
Over-the-counter antihistamines and decongestants are two ways to remove phlegm from the throat and sinuses without coughing, reports WebMD. Natural, home remedies include steam, hot water and foods proven to benefit the immune system.Full Answer >