How long does it take for mold in your house to make you sick?

Mold can make you sick surprisingly fast. Some people feel symptoms within hours like sneezing, coughing, itchy eyes, or headaches. Others may not notice issues for days or even weeks. It depends on your sensitivity, the mold type, and how much you’re exposed to. People with allergies, asthma, or weakened immune systems react sooner and often more severely. Children and older adults can be more vulnerable too. If you see mold, smell a musty odor, or feel worse at home than elsewhere, take action quickly. Mold exposure builds over time, and early cleanup helps protect your health.