Although it is recommended to check your doctor for severe cough, here are still some natural tips to help deal with cough;
Drink plenty of water and other natural liquids like broth or herbal teas. This will keep the throat moist and will minimize the irritation.
Gargle with warm salt water frequently. For this, mix one teaspoon of salt in warm water and gargle.
Maximize the use of lemon and honey in your diet. Use these 2 ingredients in your teas because honey has soothing benefits and lemon is full of Vitamin C which helps in improving the immune system.
Use a humidifier in your rooms, especially at nigh time. This will ease your irritated throat and will ease coughing.
Go for herbal kitchen ingredients widely, like peppermint. ginger, cardamom, cinnamon etc.