Allergy Shot Chart: The Dose-Escalation Tracking Table Explained
An allergy shot chart is the visit-by-visit dose-escalation table allergists use to track build-up progress: rows = clinic visits, columns = vial dilution (red/yellow/blue/green/silver per Cox 2011), injection volume (0.05→0.5 mL), local-reaction wheal size, and dose-adjustment decision. Color-code honesty: only 41% of vials are actually color-coded (Prudenti 2023). Read labels, not colors. Wheal >25–35 mm triggers next-dose reduction per clinic protocol.
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An allergy shot chart tracks vial dilution, injection volume, pre-injection screening, 30-minute wheal size, and dose-adjustment decision at every visit. The canonical build-up runs from silver (1:10,000) to red (1:1) over approximately 24–28 weekly visits per Cox 2011.
The essentials
An allergy shot chart is the clinical tracking document that captures the dose-escalation sequence across every injection visit. It is not standardized across clinics in its exact format, but the data columns are consistent: vial dilution or color, injection volume, pre-injection screening results, post-injection wheal measurement, and dose-adjustment decision.
Curex pairs at-home IgE testing with allergist review to identify the allergens that will populate the patient's dose-escalation chart — the molecular workup that precedes any meaningful build-up tracking.
The canonical build-up chart per Cox 2011 PP3 conventional weekly schedule: Visit 1 = silver (1:10,000) 0.05 mL; escalating through the volume ladder (0.05, 0.10, 0.15, 0.20, 0.25, 0.30, 0.35, 0.40, 0.45, 0.50 mL) within each vial, then advancing to the next dilution. At the canonical dilution order: silver (1:10,000) → green (1:1,000) → blue (1:100) → yellow (1:10) → red (1:1 maintenance concentrate). Approximately 24–28 total weekly visits to reach the red vial at 0.5 mL.
Color-code honesty flag: per Prudenti et al. (PMC10636704, 2023 University of Michigan audit), only 41% of externally prepared vials were color-coded at all, and just 20.6% met all five required labeling components. Many clinics use alphanumeric systems instead. The chart column for "dilution" must be read from the vial label, not assumed from cap color.
The local-reaction wheal column drives the dose-adjustment decision per Cox 2011 Summary Statements 27–30. Wheal up to approximately 20–25 mm: within normal range, advance dose at next visit. Wheal >25–35 mm: typically triggers a hold (repeat the same dose) or reduction. Very large local reaction: one full dilution reduction. The chart's wheal history also has a safety function: it identifies patients with unusually reactive histories who warrant slower escalation or additional precautions.
The pre-injection screening fields on every chart per Cox 2011 and clinic protocol: current asthma symptoms, fever, new respiratory infection, new medications (especially beta-blockers and ACE inhibitors), pregnancy status, vitals for asthmatics, peak expiratory flow. Per Epstein Year 3 surveillance (PMID 23535092), 86% of US clinics always screen asthmatic patients before injection.
The beyond-use date column is a safety gate: when a vial's beyond-use date is reached, a new vial set is prepared. Maintenance concentrate vials are typically labeled for use up to one year per AAAAI guidance.
Missed-dose protocols per Cox 2011 are also reflected in the chart: longer gaps between visits require dose reductions noted in the dose-adjustment column. The principle — the longer the gap, the larger the reduction — ensures safe resumption of escalation.
How allergy shots retrain your immune system
The allergy shot chart functions as the real-time immune-tolerance tracker. Each row captures one step on the dose-escalation ladder. The wheal-measurement column reveals the patient's immune reactivity at that dose. The dose-adjustment column records the clinical response — advance, hold, or reduce — that optimizes the escalation rate for each individual patient's reactivity profile.
Vial Dilution Column
Red (1:1), yellow (1:10), blue (1:100), green (1:1,000), silver (1:10,000) per Cox 2011 canonical order. Or alphanumeric: 1 (maintenance) through 5 (most dilute). Color-code honesty: 41% of real-world vials are actually color-coded (Prudenti 2023).
Volume Column
0.05, 0.10, 0.15, 0.20, 0.25, 0.30, 0.35, 0.40, 0.45, 0.50 mL per Cox 2011. Volume escalates within each vial before advancing to the next dilution.
Wheal Measurement Column
Measured at ~30 minutes. ≤20–25 mm: advance next visit. >25–35 mm: hold or reduce. Very large: one full dilution reduction. Per Cox 2011 Summary Statements 27–30.
Dose-Adjustment Decision Column
Advance / Hold / Reduce per wheal size and any screening flags. Missed-dose adjustments: longer interval = larger reduction. Records systemic reaction grade per WAO 5-grade system if any occur.
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See if at-home shots are right for youFrequently asked questions
What is on an allergy shot chart?
An allergy shot chart captures the dose-escalation data for every clinic visit. Key columns per Cox 2011 PP3 and AAAAI/ACAAI protocols: (1) visit date and vial identification (dilution indicator or color, beyond-use date); (2) pre-injection screening (asthma status, fever, new meds, pregnancy, peak flow for asthmatics); (3) injection details (volume in mL, arm used, time of injection); (4) post-injection wheal and erythema measurement at 30 minutes; (5) dose-adjustment decision for next visit; (6) any systemic reaction graded per WAO 5-grade system. The chart is the primary safety and tracking document for the entire build-up phase, and it guides every escalation and reduction decision.
What does the dose escalation look like on a real allergy shot chart?
A sample row for visit 12 of a conventional weekly build-up per Cox 2011: Vial = blue (1:100), volume = 0.30 mL, screening = no asthma symptoms, no fever, no new medications, peak flow 480 L/min. Injection time = 10:32 AM. Post-injection wheal at 30 minutes = 18 mm (within normal range). Dose-adjustment decision = advance to 0.35 mL blue at next visit. Beyond-use date on blue vial = 45 days remaining. This row captures everything needed to safely advance the escalation. A wheal of 18 mm per Cox 2011 Summary Statements 27–30 is within the normal range requiring no dose reduction — the patient advances one step on the volume ladder.
What happens when the wheal is too big on my allergy shot chart?
Large local reactions are tracked on the allergy shot chart and drive dose-adjustment decisions at the next visit. A wheal up to approximately 20–25 mm is typically within the normal range per Cox 2011 clinic protocols, requiring no dose reduction. A wheal in the 25–35 mm range typically triggers either holding the same dose for the next visit (repeat rather than advance) or a small dose reduction. A very large local reaction — significantly exceeding that threshold — typically triggers a one-full-dilution reduction (for example, stepping back from blue 1:100 to green 1:1,000). The clinical context matters: isolated large local reactions have limited predictive value for subsequent systemic reactions per Cox 2011 Summary Statements 27–30; but repeated large reactions across multiple visits suggest the escalation pace needs slowing.
How are missed doses noted on the allergy shot chart?
When a patient misses a visit or has an unusually long interval since the last injection, the missed-dose adjustment is documented on the chart before the next injection is given. Per Cox 2011 interval-based protocols, the longer the gap since the last injection, the larger the dose reduction required before resuming escalation. A gap exceeding approximately 10–14 days during build-up typically triggers stepping back to a lower dose. During maintenance, shorter overruns may not require reduction; longer gaps require individualized assessment. The chart records the gap duration, the adjusted dose that was given, and the clinical rationale. These records are important for patient safety if a systemic reaction subsequently occurs.
Do clinics share or transfer allergy shot charts?
Allergy shot charts are part of the patient's medical record and should transfer between providers when a patient changes clinics or allergists mid-course. Continuity of care depends on knowing the exact vial composition, the doses previously tolerated, any large local reactions or systemic reactions in the history, and the current position in the escalation ladder. Patients changing clinics should request a full copy of their immunotherapy records, including the dose chart history and vial composition documentation. A new clinic that lacks this information must restart from a conservative dose — typically repeating recent doses before advancing — to ensure safety.
What is the difference between the allergy shot chart and the allergy shot schedule?
The allergy shot chart is the document that records what actually happened at every visit: the vial drawn, the volume given, the wheal measured, and the dose-adjustment decision made. The allergy shot schedule is the forward-looking appointment calendar — typically weekly during build-up, then biweekly then monthly at maintenance. The chart captures the medical record; the schedule captures the appointment logistics. Both are part of good SCIT management. Patients who maintain their appointment schedule reduce the need for dose reductions that arise from missed visits, which in turn keeps their chart progressing at the intended escalation pace.
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This content is for informational purposes only and does not constitute medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider with questions about a medical condition. Content reviewed by board-certified allergists at Curex.