Homeopathic remedies may be derived from either plant mineral or animal sources. When taken in large quantities symptoms may occur. However when highly diluted according to homeopathic principles immune system signaling or stimulation occurs in an effort to reduce symptoms via gentle non-toxic immune system up-regulation.Temporarlly relieves allergy symptom from hay fever or respiratory allergies such as sinus congestion sneezing nasal discharge headache sinus pain and pressure.Other products from HerbsPro