German experts on Schuessler Tissue Salts recommends using
No. 3 + 7 + 6 to strengthen the body's defense system.
No.3 Ferrum phosphate-> fights all kinds of infections in their initial stage. No.7 Magnesium phosphate-> alleviate muscle pains and tensions. No.6 Potassium sulphate-> enhance healing of inflammations of mucous membranes (such as bronchitis)