Mold’s negative effects on health can include skin, nose, throat, lung and eye irritation, according to WebMD. Certain individuals may experience especially negative effects from mold, including those who have asthma, allergies, chronic lung disease or compromised immune systems.
Infants, children and the elderly are also particularly susceptible to health complications caused by mold exposure, explains WebMD. By touching or breathing in mold spores, individuals with mold sensitivity may sneeze or develop red eyes, a runny nose or a skin rash. Those with greater mold sensitivities may experience more severe effects, such as shortness of breath. People with asthma who are allergic to mold can have an asthma attack from inhaling mold spores. Mold spores are generally not harmful in small amounts, but become more harmful as they increase in number.