According the California Department of Health Services, the most common symptom is an allergic reaction. Other reactions may include one or a combination of the following: respiratory problems, such as wheezing, and difficulty in breathing; nasal and sinus congestion; eyes-burning, watery, reddened, blurry vision, light sensitivity; dry, hacking cough; sore throat; nose and throat irritation; shortness of breath; skin irritation; central nervous system problems (constant headaches, memory problems and mood changes); aches and pains; and possible fever.