Hello,
You are suffering from severe
cough and have to cough up phlegm from deep in the lungs, diaphragm or stomach. Phlegm that comes out is grayish color. You also recovered from voice loss in a day or two. Since you lost your voice, you have been suffering from
laryngitis. Even though you have recovered you should give voice rest. Take plenty of water and fluids. Stay well hydrated.
You are coughing out gray phlegm, it is indicative that you have inhaled polluted air. Avoid staying in polluted area, your body is trying to get rid of this material and is trying to prevent it from getting into your lungs. You are suggested to get clinically examined by a GP, get sputum swab tests, CBC, X-ray lungs, etc., done to detect
bronchial infection or
COPD, etc. Quit
smoking if you are a smoker, however even if you don't smoke this could result from inhalation of large amounts of air pollutants, like smog or dust.
Do not leave any nasal infections or
sinus infections untreated, for long periods of time. Get clinically evaluated and treated at the earliest to prevent serious lung diseases. No, it is not the same infection that is causing the three of you discomfort. Get your daughter in law & her 5yr old clinically examined and evaluated. Get them treated.
Take care. Hope I have answered your question. Let me know if I can assist you further.
Regards,
Dr. Nupur K., General & Family Physician