The term 'suffer from allergies, say' can be represented by the three letter word 'AIL'. Ailments such as allergies can cause a person to suffer from physical and mental discomfort. Allergies are caused by an overreaction of the immune system to certain substances, such as pollen or pet dander. Symptoms of allergies can range from mild to severe and can include sneezing, coughing, itchy eyes, and difficulty breathing.