How to remedy a cough depends on what's causing it

By Sandee LaMotte, CNN

Updated 0903 GMT (1703 HKT) January 5, 2018

The bone broth in chicken soup contains collagen, which can help boost your immune system, in addition to amino acids and nutrients that help prevent inflammation.
Photos: Eight superfoods to boost your immune system
The bone broth in chicken soup contains collagen, which can help boost your immune system, in addition to amino acids and nutrients that help prevent inflammation.
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Yogurt is a natural source of probiotics, also known as "good bacteria" that live in your gut. Studies have linked good gut health to boosting immunity, better sleep and good digestion.
Photos: Eight superfoods to boost your immune system
Yogurt is a natural source of probiotics, also known as "good bacteria" that live in your gut. Studies have linked good gut health to boosting immunity, better sleep and good digestion.
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"Fatty fish, such as salmon and tuna, contain omega-3 fatty acids, which help control inflammation in your body," dietitian Maxine Yeung says.