Most likely, you have bronchitis, which is commonly caused by a viral infection and it not treatable with antibiotics, such as ampicillin. You should talk to your physician and have a proper evaluation rather than taking medications without any evaluation.
Phlegm.
Cough medicines may help either to control coughing or loosen the phlegm.
A nonproductive cough is a cough that does not bring up phlegm or mucus. It is also called a dry cough, and tends to irritate the throat much more than a productive cough (a cough that brings up phlegm and/or mucus) does.
any decongestant
A person with emphysema would cough up to about 2 cups of phlegm per day. That would mean in 8 days, they would cough up a gallon of phlegm. Drink up!
I have a cough then suddenly, the phlegm was blocking my throat.
Yes. Bacterial pneumonia will give you yellow phlegm A: I assume you mean when you cough. Actually, any pulmonary bacterial infection with a productive cough can yield yellow or brownish phlegm.
Phlegm is mucous. It is generally referred to as "phlegm" and sometimes as "sputum" when referring to mucous found in the throat or expelled from the lungs/bronchial passages by way of a cough.
When phlegm comes out when you caugh it is called productive cough. If nothing is produced it is called as dry or non - productive cough
Some cough medicines are antitussives (cough suppressants) and some are mucolytics (purported to loosen phlegm).
You can try taking an oral expectorant-type cough medicine. Expectorants are substances that promote coughing rather than suppressing it, in order to bring out phlegm from the bronchia.
A productive cough is when you cough up mucus or phlegm from your lungs. To manage it effectively, you can stay hydrated, use a humidifier, try over-the-counter cough medicines, and consult a doctor if it persists.