Mols are ubiquitous in nature, and mold spores are a common component of household and workplace dust. However, when mold spores are present in large quantities, they can present a health hazard to humans, potentially causing allergic reactions and respiratory problems. Because of this, mold allergy has become a serious problem for many people. Research in the field of environmental health has yielded tests such as the MELISA assay, which is capable of identifying whether or not a person is allergic to specific molds. If a person is found to be allergic, the remedies listed below are often helpful in reducing allergic reaction.