According to your sign and symptom you are suffering from some infection cough as upper respiratory tract infection.
As you know that best treatment depend on the correct diagnosis and correct diagnosis depend on the complete history of the patient so please take consultation from a doctor and give complete history of the patient so that correct diagnosis will be make and then best treatment will be start
Next Steps
Do test as cough culture to know the exact cause of that cough .
If no infection present in culture then it's allergic type of cough and for that you should take
only Tablet - Montina L 1 time per day for 1 week and
take Multivitamin A to Z Gold Capsule 2 time per day for 1 week for strength and immunity.
Health Tips
Please follow good life style and keep positive attitude to fight any problem of your life.