As tree pollen blankets the landscape in its annual springtime ritual, allergy sufferers everywhere are reaching for the tissues and antihistamines.
Allergies are common — about 50 million Americans have some kind of allergy, from hay fever to hives, according to the American Academy of Allergy, Asthma and Immunology. And the numbers have been rising for decades.
Scientists have offered varying theories for this increase.
But new research suggests that use of antibiotics and antacids in infancy could be at least partly to blame.
Researchers writing in the current issue of the journal JAMA Pediatrics looked at nearly 800,000 children born between 2001 and 2013 who were given antibiotics and/or antacids in the first six months of life and found a link between the drugs and subsequent development of allergies.
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