expose kids to all allergens before 1 (4-6m of age)

urticaria: papular, erythematous, pruritus, blanching, transient, migratory.

red falgs in urticaria:

• other signs supporting anaphylaxis
• pain >itch = inflamm
• last >24hrs = vasculitis
• non blanching
• bruising after resolving
• associated signs/symptoms (arthralgia/arthritis for serum sickness, active urinary sediment)

food allergens can become systemic: dietary protein fragments can cross GI tract

epipen 3s hold in anterolat thigh (IM)