There are two basic ways that people and practitioners can use homeopathy.

1. Combination remedies. This refers to homeopathic formulas that contain two or more homeopathic remedies. If the remedy a person needs is in the formula, then it will be helpful. If the homeopathic remedy one requires is not one of the ­ ingredients, then usually nothing will happen or only minor improvements that do not last will occur. Combination remedies are available in most health food stores or pharmacies. They are prepared for certain conditions, including colds, flu, teething, colic, diarrhea, rashes, headaches, and others.

2. Single remedies. This is the system that's used by trained homeopathic practitioners. The one remedy that best matches the patient's symptoms is prescribed. In general, this system is more effective than combination remedies, but it requires a knowledgeable practitioner to pick the correct homeopathic. If the single remedy choice is obvious (as described in the remedy summary), then go ahead and use single remedies for yourself or a loved one