Thank you for the question.
Need to be clarified, what lung disease did your colleague experience?
There are many diseases that can affect the lungs, and not all of them can be contagious. Some examples of disorders of the lung that are contagious and cause coughing are pneumonia, pulmonary tuberculosis, and so on.
Cough that you are experiencing right now, apart from lung disease, can also be caused by other factors, such as asthma, bronchitis, gastroesophageal reflux disease, laryngitis, gastritis, pharyngitis, rhinosinusitis, malignancy around the respiratory tract and throat, heart problems, aspiration of objects foreign, drug side effects, and so on. The current epidemic, COVID-19, can also trigger coughing.
If you only have a cough, often this condition is harmless. You can try to overcome your cough first by:
Use a mask
Do not indiscriminate spitting, coughing, sneezing, and also keep a distance with other people around you (at least 2 meters)
Stay away from cigarettes and smoke, dust, cold, pollution, and other substances that are prone to worsen coughs and make you allergic
Eat regularly, don't be late, don't eat cold, greasy, sweet foods
Drink plenty of warm water and fruits that are rich in vitamin C
Restrict outside the house, except for emergencies
Do not use excessive air conditioning and fans, it is safer to use air humidifiers so that the humidity of the air in your residence is more awake
Do not take any medicine without doctor's advice
Improve personal hygiene and your environment
Maintain endurance with exercise, rest, and a healthy lifestyle
Conversely, if the cough does not improve for a long time, or if there are signs of danger, such as high fever, shortness of breath, vomiting, bloody phlegm, wheezing, body swelling, and so on, you should immediately see your doctor or doctor in the nearest huh ..
I hope this helps.