Astragalus water drink too much, some people will appear the symptoms of fire, manifested by dry mouth, dry nose, dry throat and even some people may have nosebleeds, because astragalus is a tonic drug, sweet and warm, to the lung meridian and spleen meridian, has the role of tonifying the qi and strengthening the spleen, raising the Yang and lifting the trap, benefitting the health and diuretic and swelling. If a patient with yin deficiency is already deficient in yin, the warmth of astragalus and its diuretic effect on swelling may make the body even more deficient in yin, resulting in symptoms of fire such as dry mouth, dry throat, dry throat and even nosebleeds. However, for people with spleen qi deficiency, lung qi deficiency and qi and blood deficiency is more obvious, no yin deficiency symptoms apply astragalus without side effects.