On leaves and on the ground, especially where snow has melted, you can find outdoor mold. It is peak season for outdoor mold now that the snow is melting and warmer weather has moved into Mid-Michigan.
Mold can cause nasal congestion, sneezing and sinus headaches. If you are sensitive to mold, you should have someone else clear moldy leaves away from your home. Doctors say using an air conditioner and keeping windows shut at night and in the early morning can also help.
Mold marks the start of allergy season, and tree pollen is on its way. Experts predict it may be a severe allergy season due to a cold, wet winter.
To treat symptoms, it's best to see your doctor for medication.