Direct Oral Challenges in Private Practice Setting to Delabeling Children With Beta-lactam Allergy

Inclusion Criteria: * Population: Children's age between 0 and 17 years * Child who has undergone a direct oral challenge in a private medical practice and a follow-up consultation within 7 to 14 days for suspected delayed allergy to amoxicillin +/- clavulanate or cefpodoxime or cefixime with the following characteristics: * delayed reaction (onset \> 1 hour after treatment start), * mild reaction (isolated urticaria or Maculopapular exanthema), * Absence of warning signs suggestive of a severe cutaneous adverse reaction (erythroderma, presence of bullae, vesicles, pustules, target lesions, involvement of oral, genital, or ocular mucosa, facial edema, general condition impairment, organ failure, duration \> 7 days). Exclusion Criteria: * Informed children or holders of parental authority objecting to the use of patient data in the study.