testing-phototherapy — open questions (round 11)

• What standard oral food challenge protocol (dose steps, intervals, observation time) is used for 1–4-year-olds in UK/US/SA allergy clinics, and how often do toddlers fail to complete challenges by refusal?
• Is there any published NB-UVB phototherapy data for children under 4 with atopic dermatitis, and any long-term (adult) skin-cancer follow-up of children treated with NB-UVB?
• Does refined arachis oil in a skin preparation carry enough protein to sensitise (rather than elicit) peanut allergy in an infant with inflamed eczema?
• How many UK emollients/medicines licensed for children still contain arachis oil in 2026?