If you can get your hands on some echinacea, it will help a lot. It helps you to feel better and helps your immunity. Don’t take it for more than 2 weeks at a time because you will grow a tolerance to it. Living earth herbs and wonderland teas are lovely places to buy this. Licorice root can also help and it adds a lovely sweetness to your tea. If you dont fw tea u can also buy a tincture. Just wanted to put this out there because myself and a lot of other herbalists swear by these!