In Chinese Medicine, the lung meridian is your first barrier of defense against "external evil", basically the stuff outside your body that makes you feel sick when it gets inside your body. With respect to seasonal allergies, this would be pollen and other airborne allergens that trigger a reaction in your body.
The Chinese reflexology point for the lungs isn’t a point, but actually a large area on the soles of your feet. The reflexology lung point is located on the ball of your foot, under the three middle toes. You’ve got one on both your left foot and your right foot.
To massage this area, press deeply with your thumbs and when you feel a point that is tender to touch, press more deeply and massage using small circles. Move slowly across the lung point and be sure to massage the entire area. You should aim to massage this area for about 60 seconds per foot.