This means:
“If you constantly have phlegm or mucus in your throat, this article claims to explain the possible underlying causes and ways to reduce or clear it.”
Breakdown
“The real causes” = promises to reveal the actual reasons behind persistent throat mucus.
“Constant phlegm and mucus” = ongoing or recurring mucus that you feel in your throat or need to clear frequently.
“In throat” = focuses on mucus felt or collected in the throat.
“How to get rid of it” = promises treatments or practical ways to relieve the problem.
Common causes
Persistent throat mucus can be associated with postnasal drip, allergies, colds or other respiratory infections, acid reflux, asthma, smoking, or irritation from environmental factors. Sometimes the sensation is more about throat irritation than excessive mucus.
Tone
This is a health-information/clickbait headline. The word “real” suggests there is one hidden explanation, but persistent mucus can have many different causes.
A simpler, more accurate version:
“Why you may have persistent throat mucus and what can help relieve it.”
If the problem persists for several weeks, or you have difficulty breathing or swallowing, blood in the mucus, unexplained weight loss, severe pain, or a persistent voice change, medical evaluation is appropriate.
