Oral Immunotherapy With Extensively Hydrolyzed Milk for a 12-Year-Old Child With Persistent, Severe Cow's Milk Allergy.

Abstract

A 12-year-old girl with severe cow's milk allergy (CMA) was able to safely consume 300 mL ofunhydrolyzed cow's milkafter three and a half years of oral immunotherapy (OIT) with extensively hydrolyzed milk. The treatment consisted of gradually increasing the intake ofhydrolyzed and partially hydrolyzed milkand reintroducing cow's milk. Despite some allergic reactions during treatment, the patient was able to consume more than 200 ml of milk consistently for more than six months without recurrence of symptoms. This case suggests the possibility of an alternative treatment for persistent CMA: not only OIT with cow's milk alone but also a safer introduction to treatment with extensively hydrolyzed formulas.