Although homeopathic substances listed in this article are generally not known to cause serious side effects, their effectiveness has not been demonstrated by scientific research. Consumers should check labels carefully, since a homeopathic product that is not diluted, or not diluted enough, may contain ingredients that cause allergic reactions, side effects, or interactions. It is always advisable to discuss any new treatment program with your healthcare practitioner.
For more information, see Homeopathy FAQs, "What Is Homeopathy?," and “Using Homeopathy with Professional Guidance” in Homeopathic Medicine.
Hives, or weals, are allergic reactions, with red, swollen skin, red patches, itching, and burning pain. They are triggered by some foods, medications or allergens such as latex or animal dander. See a doctor immediately if you experience difficulty breathing. See a doctor if hives are recurrent or do not heal.