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You have caught a cold alright.
Is there any fever? Also, is the cough productive? If there is no productive cough and no fever, then you probably have a post nasal drip associated with the rhinitis, hence a chronic dry cough.
It could also be tracheitis, in which case you may need prescription antibiotics if it does not go away or gets worse in a couple of days.
The episode of chest pain once was probably just from all the straining of respiratory muscles due to coughing.
For now, if you do not have a fever or a purulent cough, just do the following:
- Steam with menthol inhalation three times a day.
- An antihistamine like Cetirizine.
- If symptoms do not improve in two to three days or worsen, prescription antibiotics may be needed for possible tracheobronchitis.
- Paracetamol for body ache - just one tablet once or twice daily.
For more information consult a general practitioner online --> https://www.icliniq.com/ask-a-doctor-online/general-practitioner