Lead
In the days after a food allergy diagnosis, most parents feel a version of the same disorientation: "I don't know what to avoid or how." But a few years later — after the first cautious re-introduction, after the first food challenge that went better than expected — the question shifts into something different. "When will this get better? How far can we go?"
Food allergy is not a static condition. From initial diagnosis through natural resolution, or through the gradual process of oral immunotherapy, it changes over years. Tracking those changes accurately and communicating them to a clinical team requires a consistent recording habit — one that ideally begins at diagnosis and continues through every stage. This article reviews the natural course of food allergy and the management framework built around it, and examines what records contribute along the way.
Natural Resolution Rates: The Allergen Matters
Whether a food allergy will resolve on its own — and when — depends substantially on which food is involved.
For cow's milk allergy, Skripak and colleagues' cohort study of 293 children, with a median follow-up of 66 months, found that 154 participants (52.6%) had achieved remission by the time of last follow-up [1]. The factors that predicted remission were baseline milk-specific IgE: Immunoglobulin E — the antibody type that drives allergic reactions; specific IgE blood tests measure sensitization to particular allergens like milk or peanut levels, skin-prick test wheal diameter, and atopic dermatitis severity — all measurable variables that inform a physician's prognosis [1].
A subsequent multicenter observational cohort by Wood and colleagues added nuance to that picture [2]. They found that remission in milk allergy does not cluster in early childhood but continues across the full follow-up period. They also described a pattern of partial remission: a child who tolerates baked milk (heat-denatured protein) but still reacts to unheated milk [2]. The binary of "allergic" versus "not allergic" fails to capture this graduated reality. Understanding the child's current position in this spectrum, rather than trying to place them on one side of a line, is a more useful clinical frame.
For peanut, tree nut, and shellfish allergies, the picture is quite different: spontaneous resolution rates are much lower than for milk or egg, and persistence into adulthood is common [3]. This difference in natural history fundamentally shapes the management strategy for each allergen.
Oral Immunotherapy: A Changing Option
Rather than waiting for natural resolution, oral immunotherapy (OIT): a structured medical treatment in which an allergic person consumes gradually increasing doses of an allergen under supervision, aiming to raise the threshold at which a reaction occurs — a structured protocol of gradually increasing allergen exposure designed to raise the threshold for reaction — is moving from research settings into clinical practice.
The PALISADE trial (2018) was a randomized, double-blind, placebo-controlled study of AR101 (a standardized peanut flour formulation) in 496 participants aged 4–17 with peanut allergy [4]. Participants in the active group showed a significant increase in the amount of peanut protein they could tolerate during an exit oral food challenge, with lower symptom scores compared to placebo [4]. The results contributed to the 2020 FDA approval of Palforzia — the first drug approved specifically for food allergy treatment.
Important caveats apply. OIT carries real risks: reactions during escalation, and the possibility of anaphylaxis, require that it be conducted under a structured protocol in a specialist setting. In Japan, the Japanese Society of Pediatric Allergy and Clinical Immunology's Food Allergy Practice Guidelines 2021 positions OIT as appropriate for clinical research settings and specialized facilities [5]. Independent "home challenges" — parents increasing allergen exposure without clinical supervision — are not an appropriate substitute and should not be attempted without specific guidance from a specialist.
Epinephrine auto-injectors (known in Japan by the brand name Epipen) are frequently prescribed to children undergoing OIT and to any child assessed as high-risk for anaphylaxis. Families with a prescription should have a clear, practiced understanding of when to use it, where it is stored at home and at the child's school or daycare, and how to manage the minutes after use before emergency services arrive.
The School Management Plan and What It Does
Managing food allergy in a school or daycare setting in Japan requires a specific institutional document: the seikatsu kanri sidou-hyo, or food allergy management instruction form. A child's physician completes this form, and the facility uses it to coordinate meal accommodation and emergency response protocols.
The form covers the relevant allergens, the severity of past reactions, whether an epinephrine auto-injector has been prescribed, and the recommended response if a reaction occurs. Parents are responsible for submitting the form to each facility and for updating it when the child's allergy status changes — after a food challenge test, after a period of tolerance building, or if the epinephrine prescription changes. The form is reviewed annually in most settings, but clinical changes do not wait for annual reviews.
Knowing where the epinephrine auto-injector is kept at school, who is authorized to administer it, and what the school's protocol is for calling emergency services are not details to sort out reactively. They are details to confirm before the school year begins and to reconfirm after any significant change in the child's condition.
The Psychological Dimension
Cummings and colleagues' 2010 review of the psychosocial impact of food allergy in children, adolescents, and their families found elevated rates of anxiety and depression in parents of food-allergic children, along with reduced quality of life [3]. Parents who experienced allergy as a state of chronic unpredictability — never knowing when an accidental exposure would happen — showed a tendency to restrict eating out, travel, and care by others. The review also noted that this protective restriction could itself narrow a child's social experience in ways that had their own developmental costs [3].
Managing food allergy is not only a question of "what to avoid." It is also a question of "what can be safely included?" Moving along that second axis — expanding life within appropriate boundaries — requires accurate medical information and ongoing engagement with a specialist. A parent's anxiety, when it tips into avoidance that significantly constricts the family's life, is itself a subject worth discussing with the clinical team.
The Record as a Loop
Food allergy management does not conclude at any single visit. Annual oral food challenge tests, the trajectory of specific IgE values over time, records of accidental exposures and the reactions they produced, the course of allergen reintroduction — all of this accumulates into a picture of where the child's allergy currently stands.
Without records, "Has anything changed since last year?" is a question that is genuinely difficult to answer accurately. Body weight may have changed — relevant because epinephrine dosing is weight-based. The school environment may have changed. The child's own ability to recognize and report symptoms may have changed. Having a rough timeline of these changes in hand at each visit raises the density of what can be accomplished in that appointment.
Records kept in Memori — allergen-related events logged with dates — do more than serve the next clinical visit. They become, over time, a map of the child's allergy: its pattern, its responses to intervention, its current state. And eventually, when the child is old enough to take ownership of their own allergy management, that record is one of the most useful things a parent can hand over.
Summary
Food allergy is neither "permanent from diagnosis" nor "automatically outgrown" — it is a condition that follows a spectrum determined by allergen type and individual variation [1,2,3]. Oral immunotherapy is expanding the range of options [4], and with it the need for careful monitoring and communication. The parent's role is not only avoidance; it is observation and transmission of change.
Maintaining records of that observation, and sharing them with the clinical team, is what closes the loop in food allergy management.
References
- Skripak JM, Matsui EC, Mudd K, Wood RA. The natural history of IgE-mediated cow's milk allergy. J Allergy Clin Immunol. 2007;120(5):1172–1177. doi:10.1016/j.jaci.2007.08.023. PMID: 17935766.
- Wood RA, Sicherer SH, Vickery BP, et al. The natural history of milk allergy in an observational cohort. J Allergy Clin Immunol. 2013;131(3):805–812. doi:10.1016/j.jaci.2012.10.060. PMID: 23273958.
- Cummings AJ, Knibb RC, King RM, Lucas JS. The psychosocial impact of food allergy and food hypersensitivity in children, adolescents and their families: a review. Allergy. 2010;65(8):933–945. doi:10.1111/j.1398-9995.2010.02342.x. PMID: 20180792.
- PALISADE Group of Clinical Investigators; Vickery BP, Vereda A, Casale TB, et al. AR101 oral immunotherapy for peanut allergy. N Engl J Med. 2018;379(21):1991–2001. doi:10.1056/NEJMoa1812856. PMID: 30449234.
- Ebisawa M, Ito K, Fujisawa T, editors. Food Allergy Practice Guidelines 2021. Japanese Society of Pediatric Allergy and Clinical Immunology; 2021.
- Sampson HA, Muñoz-Furlong A, Campbell RL, et al. Second symposium on the definition and management of anaphylaxis: summary report. J Allergy Clin Immunol. 2006;117(2):391–397. doi:10.1016/j.jaci.2005.12.1303. PMID: 16461139.