Managing Allergic Reactions Toolbox Talk

Allergic reactions can happen on a jobsite from bee stings, insect bites, foods, latex, chemicals, dust, plants, medications, or environmental exposure. Some reactions are mild, but others can quickly become life-threatening when breathing, swelling, or circulation is affected.

This talk focuses on recognizing allergic reaction warning signs, responding fast, helping the worker use prescribed emergency medication if allowed, and knowing when to call emergency services.

Why This Matters

• A severe allergic reaction can block the airway, cause breathing trouble, and lead to collapse.
• Symptoms can start mild and get worse within minutes.
• Workers may be exposed to hidden triggers in food, chemicals, gloves, dust, landscaping, or stored materials.
• Fast response helps prevent panic, delayed care, and unsafe movement around equipment or heights.
• Clear reporting helps emergency responders understand the trigger, symptoms, and treatment already given.

Common Hazards

• Bee stings, wasps, hornets, fire ants, spiders, or other insects around materials, dumpsters, trailers, roofs, or landscaping.
• Food allergies during breaks, shared lunches, vending items, or catered meals.
• Latex gloves, adhesives, sealants, solvents, cleaners, coatings, insulation, dust, or chemical vapors.
• Poison ivy, poison oak, poison sumac, weeds, mold, pollen, or contaminated clothing and tools.
• Workers ignoring early symptoms such as itching, hives, swelling, tight throat, nausea, dizziness, or wheezing.
• Emergency medication stored in a truck, locker, lunch box, or personal bag that is not nearby when needed.
• A worker returning to high-risk work after symptoms improve, then having the reaction come back or worsen.

Safety Checklist

Before Work Begins

• Know who on the crew is trained in first aid, CPR, and AED use.
• Locate the nearest first aid kit, AED, phone, radio, emergency contact list, and site address.
• Confirm the best gate or access point for emergency responders.
• Identify likely allergy triggers on site, including insects, chemicals, plants, dust, latex, foods, or environmental conditions.
• Encourage workers with known severe allergies to keep prescribed emergency medication accessible and share emergency instructions as required by company policy.

During Work

• Stop work if a worker reports swelling, hives, itching, trouble breathing, throat tightness, dizziness, nausea, or a reaction after a sting, bite, food, chemical, or plant exposure.
• Move the worker away from the trigger if it can be done safely.
• Call emergency services right away for breathing trouble, throat or tongue swelling, chest tightness, faintness, confusion, widespread hives, or symptoms affecting more than one body system.
• Help the worker use their prescribed emergency medication, such as an epinephrine auto-injector, if allowed by site policy and training.
• Keep the worker still, calm, and under observation while waiting for responders.
• Do not give food, drink, or medication unless directed by emergency services, medical professionals, or the worker’s emergency plan.
• Watch for symptoms returning, worsening, or progressing to shock, breathing trouble, or loss of consciousness.

Crew Talking Points

• What allergy triggers may be present on this site today?
• Who on this crew is trained in first aid, CPR, AED use, or allergic reaction response?
• Where are the first aid kit, AED, phone, radio, and emergency contact list?
• How will emergency responders reach today’s work area?
• What symptoms mean the reaction is severe and emergency services must be called?
• Speak up if insects, chemicals, plants, dust, foods, or PPE materials could create an allergy risk for the crew.

Stop Work If

• A worker has trouble breathing, throat tightness, tongue or face swelling, chest tightness, dizziness, confusion, or collapse.
• A reaction involves more than one symptom area, such as skin symptoms with breathing trouble, stomach symptoms, or weakness.
• A worker needs prescribed emergency medication or emergency services have been called.
• The trigger is still present and could expose other workers.
• The crew is unsure whether the reaction is mild, severe, chemical-related, or life-threatening.

Final Reminder

Allergic reactions can turn serious fast. Stop work, watch breathing and swelling, call for help early, and do not send the worker back to high-risk work after symptoms appear.