I gargle with warm salt water. I also drink tea with honey it soothes the throat. Of course cough drops. If a bad cough nasty old cough syrup. I have to use the DM kind because I'm on thryoid medication.
I use the' Traditionaal Medicinals Seasonal Herb Tea Sampler ' teas a box with an assortment for Gypsey Cold care. Echinaces Plus, Throat Coat (very helpful) and Breathe Easy --not unpleasant tasting and they have worked very well for me and my adult children even use them!! Caffeine free, no side effects!! at some grocery stores, Sprouts and health food stores. If you want to check your pantry good old lemon, honey and brandy is a great fall back and may help with sleep....a vaporizer warm or cool mist -- moisture in the house air is the benefit--if no vaporizer just put some pans of water in your bedroom near the bed--you pets will love the extra water bowls...
Honey tea. A popular home remedy for coughs is mixing honey with warm water. Ginger. Ginger may ease a dry or asthmatic cough, as it has anti-inflammatory properties. Fluids. Staying hydrated is vital for those with a cough or cold. Steam. Marshmallow root. Salt-water gargle. Thyme.
Green tea is a powerful antioxidant too.
I use in Spanish they call FLOR DE JAMAICA OR JAMAICA FLOWER, it’s full of vitamin C and good for many others things.
If the cough is from a cold, i make a tea of 3 cups water, 5 crushed garlic cloves, including skin, juice of 1 lemon and the juiced lemons, 1/2 tsp. cayenne, 3 T. honey, 1 thumb of ginger diced. Simmer it for 15 minutes; then off the stove for 15 minutes. Strain. Discard peels, etc. Drink 1/4 cup of juice every few hours.
I am not expert, and I do not like to use medicine, so in saying that I will tell you what works for me. I use Elderberry juice, it isn't a fast cure (it took me about 5-7 days to heal when I started it), but you drink a small amount several times a day until your cough passes, then you continue to drink a little every morning and night to help your immune system, so you don't catch it again. They have several remedies you can purchase at Whole foods or a health food store, just ask the clerk to explain the differences to you. I started with the Sambucus brand when I was sick, they have several to choose from. Let us know what you do and how it works for you.