Treatment of Acute Otitis Media in Children with Cephalosporin Allergy

Understanding Cephalosporin Allergy

Many patients with reported penicillin allergy do not actually have a true immunologic reaction to penicillin, and cross-reactivity between penicillins and second/third-generation cephalosporins is lower than historically reported 1
The degree of cross-reactivity is higher between penicillins and first-generation cephalosporins but is negligible with second and third-generation cephalosporins 1
Second and third-generation cephalosporins (cefdinir, cefuroxime, cefpodoxime, and ceftriaxone) are highly unlikely to be associated with cross-reactivity with penicillin due to their distinct chemical structures 1

Clindamycin is recommended at a dose of 30-40 mg/kg/day in three divided doses, and is particularly effective against Streptococcus pneumoniae, including resistant strains 1
Clindamycin may need to be combined with another antibiotic if there is concern for Haemophilus influenzae or Moraxella catarrhalis 2
For severe reactions to both penicillins and cephalosporins, consider consultation with an infectious disease specialist or allergist, especially for multi-drug resistant infections 2
Tympanocentesis may be necessary to identify the causative organism and guide therapy in complicated cases 2

If the patient has taken azithromycin recently or failed initial treatment, consider clindamycin (with or without coverage for H. influenzae and M. catarrhalis) 2
For severe infections or treatment failures, consider consultation with an otolaryngologist for possible tympanocentesis and culture 2
In cases of treatment failure, reassess the diagnosis within 48-72 hours to confirm AOM and exclude other causes of illness 3

Don't assume all patients with reported penicillin allergy have true allergies or that they will necessarily be allergic to all cephalosporins 1
Avoid using trimethoprim-sulfamethoxazole or erythromycin-sulfisoxazole for treatment failures due to substantial resistance among pneumococcal strains 2
Don't forget to reassess patients who fail to improve within 48-72 hours of starting antibiotics 3
Ensure adequate pain management regardless of antibiotic choice 4
Don't treat otitis media with effusion with antibiotics unless it persists beyond 3 months 5