Immune Boosting Herbal Tea Blend: DIY Herbal Self Care - This immune-boosting herbal tea blend is the perfect herbal remedy to have on hand for cold and flu season. It's a simple herbal tea blend with immune boosting herbs like elderberry, rose hips, echinacea, and ginger. This recipe is so easy to make, not to mention delicious, and perfect for soothing a sore throat, easing cold and flu symptoms, and so much more!