It helps coating your throat and reduces your urge to cough. To make your own homemade cough syrup:
1. Mix 1/4 cup lemon juice with 1/4 cup of honey.
2. Gently warm 1/2 a cup of Olive Oil, in the microwave, for no more than 5 seconds.
3. Make sure that the Olive Oil is not too hot before mixing with the lemon and honey mixture.
4. Take one tablespoon of this mixture every two or three hours.