A new allergy treatment may help stop runny noses and swollen eyes.
Researchers are now testing an experimental medicine for people who suffer from allergies. It's called sub-lingual immuno-therapy or SLIT, for short.
Instead of an allergy shot, patients put a drop of allergy treatment under their tongue twice a day. Doctors say with the drop, the immune system becomes desensitized to allergens.
"It seems to have local effects on the immune system in the nose, eyes, respiratory tract."