Itchy forehead may be related to bad habits, fungal infections, skin allergies and other conditions. 1. Bad habits: If the forehead sweats after strenuous exercise in the summer, without timely cleaning, the sweat stimulates the forehead area skin, causing itching symptoms. If you don’t pay attention to cleaning the hair on the forehead area, it will also cause itching symptoms. 2. Fungal infection: If the forehead area is infected by fungi, it will cause the itchy skin, in addition, there will be erythema, papules, scales and other manifestations, if not timely intervention treatment, the rash will become thicker and thicker. 3. Contact dermatitis: the allergic or irritant reaction that occurs after contact with certain sensitizing or irritating substances can also cause forehead rash, itching and other symptoms. Due to a variety of reasons can lead to forehead itching, patients should seek medical treatment in a timely manner, not self-medication, so as not to cause adverse consequences.