Using grass pollen to stop grass pollen asthma Grass can be used to build immunity to grass allergies, according to a new study reported by Reuters. Just a little grass pollen extract under the tongue and things start improving. It's a form of immune therapy, and it seems to be working on at least one group of young people.
Children in the immunotherapy group used less allergy medication in the second and third years of therapy and tended to have lower allergy symptom scores, according to the team.
And after three years, children in the control group were nearly 4 times more likely than in the immunotherapy group to develop asthma.
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