A cold is an infection of the upper respiratory system caused by one of about 200 viruses. The flu is also an upper respiratory illness caused by one of several specific flu viruses.
We don’t have a remedy for common cold or flu. Instead, it’s up to your immune system to help fight back.
Echinacea is best known for its beneficial effects on the immune system.
Numerous studies have found that this plant may help your immune system combat infections and viruses, which could help you recover faster from illness.
That’s one reason why echinacea is often used to prevent or treat the common cold.
In fact, a review of 14 studies found that taking echinacea may lower the risk of developing colds by more than 50% and shorten the duration of colds by one and a half days.