<human>: My 16 years old breathed in her spit by accident and has since (over the last three days) developed a chesty cough (no cold) which is getting progressively worse.  My elderly father once did this and it turned to pneumonia.  Should I be concerned about it turning to an infection in her lung/bronchial tubes in my daughter or is the cough coincidental?  Thank you.
<bot>: Hi welcome to Chat Doctor.... Here chest pain, fever, dyspnea like symptom not present.... So chance of pneumonia less. . But it could be upper respiratory tract infection or mild bronchitis... Investigate her with .....1.CBC with absolute differential count 2. Auscultation 3. Chest x-ray only if needed Here decongestant like phenylephrine given for relieving congestion and cough ... Water Chat Doctor. . If cough worsen than sputum cytology and throat swab along with as title done Advise ; pulmonologist consultation...