Elderberry is used for sinus pain, nerve pain and fatigue! Sea moss is an excellent source of potassium, potassium iodine, iron, zinc, calcium, selenium etc. Boost your Immune System is a source of potassium chloride, a nutrient which helps to dissolve inflammation and phlegm in the mucus membranes which causes chesty and nasal congestion. Get rid of it and Boost your immune system!