The ruling on swallowing phlegm during the day in Ramadan!!

Question : A questioner asks: What is the ruling on swallowing phlegm during the day in Ramadan, especially if it is difficult to expel, such as when a man is in prayer or similar?

Answer : I say that phlegm is of two types. One type is felt by a person in his throat, descending from the brain to the stomach; there is nothing wrong with that. The other type is phlegm that comes from the chest and ends up in the mouth. I do not think anyone would swallow that phlegm. Do you think anyone would swallow it? What is the matter with you, you people?
If a person has phlegm that comes from his chest or head and ends up on his tongue, meaning in his mouth, is it possible for anyone to swallow it? It is not possible, because it is a foul substance and may carry germs that harm a person. But some people say, "I do not have a handkerchief, so I will use my belly as a substitute for a handkerchief and swallow it." What do we say to him? We say, "Glory be to Allah! If you do not have a handkerchief, you have a ghutrah (headscarf). Put it in the ghutrah and rub it until the trace is gone." He says, "I do not have a ghutrah. I am one of those who wear only caps or wear nothing." What do we say? A fool! This is why the authentic hadith prohibits a praying person from spitting in front of his face, or in his garment. Some narrators described the garment, saying he puts it in his garment like this and rubs one part against the other. I do not think anyone would follow the phlegm if it reaches his mouth. As for the phlegm that goes from the head to the throat to the stomach, there is no harm in it. Some people try their best to expel this phlegm; you find them coughing and clearing their throats. Why? To get this out? That is a mistake. As long as it has not reached the mouth, it causes you no harm whatsoever.