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How to cure a cold without over the counter medicine
Stay hydrated.
It's important to drink water during a cold since it can liquefy sticky mucous in your airway, making it easier to expel and helping with decongestion. You should try to drink at least 8-10 glasses of water each day.
If drinking water bores you, you can add lemon to the water to make it more interesting. Not only does it improve the taste, but lemon contains lots of vitamin c which supports a stronger immune system.