The increasing pollen buildup in the air can exacerbate seasonal allergies, according to experts from Kaiser Permanente. The warm, post-winter weather can exacerbate allergies, particularly in areas like Bakersfield. Dry conditions and lack of recent rainfall can allow pollen to build up, especially in areas where it lingers in the atmosphere until a strong storm clears it out. Doctor Lien Lai of Kaiser Pernetee said people should be careful in the morning, when pollen levels tend to rise as temperatures rise. She also warned that allergies can affect more than just the nose, affecting the lungs and trigger asthma-related symptoms like coughing.