Identifying allergy and anaphylaxis symptoms at work
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Every day, Australian workers are exposed to food and drinks, medications, insects, chemicals and environmental triggers that have the potential to cause allergic reactions.
In most cases, these reactions are mild and resolve with appropriate treatment. However, in some cases reactions can progress rapidly into anaphylaxis, a life-threatening medical emergency that requires immediate action.
A mild, moderate or severe (anaphylactic) allergic reaction can occur after exposure to an allergen in food, drink, medication, insect bite or sting.
The challenge for workplace first aiders is recognising the difference between a mild allergic reaction and the early signs of anaphylaxis. Symptoms can worsen quickly, leaving only a short window to provide life-saving treatment.
If any signs or symptoms of anaphylaxis are present, workers should immediately follow the ASCIA Action Plan for Anaphylaxis (Red). Prompt administration of adrenaline and urgent medical care can save a life. A delay in treatment could be fatal.
Whether your workplace is an office, construction site, school, warehouse, healthcare facility or hospitality venue, understanding allergy and anaphylaxis symptoms is an essential part of workplace first aid preparedness.
Why every workplace should understand anaphylaxis
Many people assume allergies are only a personal health issue. In reality, severe allergic reactions can occur unexpectedly in almost any workplace.
A worker may experience their first anaphylactic reaction without any previous history of severe allergies. Visitors, contractors and customers can also experience allergic emergencies while on site.
Because symptoms can escalate within minutes, workplaces should ensure workers know how to recognise anaphylaxis, access emergency assistance and respond confidently until paramedics arrive.
Preparation saves valuable time and when it comes to anaphylaxis, every minute counts.
Understanding the difference between an allergy and anaphylaxis
Not every allergic reaction is life-threatening.
Many allergic reactions remain mild or moderate, causing discomfort but not affecting breathing or circulation. Others rapidly involve multiple internal functions and become anaphylaxis, requiring immediate emergency treatment.
The difficulty is that symptoms can initially appear mild before progressing very quickly. Someone who starts with tingling lips or swelling around the eyes may deteriorate within minutes.
For this reason, first aiders should monitor anyone experiencing an allergic reaction closely and be prepared to escalate treatment immediately if symptoms worsen.
Common workplace allergy triggers you might not expect
When people think about allergies, peanuts are often the first thing that comes to mind. However, potential allergens may be present at many Australian workplaces.
Common workplace triggers include:
- Foods and beverages
- Insect bites and stings
- Prescription medications
- Latex gloves
- Cleaning chemicals
- Plants
- Moulds
- Animal exposure
Outdoor workers may be at greater risk from bee and wasp stings, while healthcare workers may encounter medication allergies. Food manufacturing, childcare, hospitality and education settings may present a wider variety of food-related allergic reactions.
Identifying likely allergens forms an important part of workplace risk management.
Recognising a mild or moderate allergic reaction

Most allergic reactions don’t progress to anaphylaxis, but they should still be taken seriously.
Careful observation helps first aiders identify whether symptoms remain stable or begin to worsen.
Anyone experiencing an allergic reaction should be reassured, monitored closely and encouraged to seek medical advice if symptoms persist or deteriorate.
Signs of a mild or moderate allergic reaction include:
- Swelling face, eyes
- Tingling mouth, swelling lips
- Hives or welts anywhere on the body
- Stomach pain, vomiting (note: these are signs of anaphylaxis for insect allergy)
Even relatively mild symptoms can become more serious, so ongoing observation is essential.

What are the red flags of anaphylaxis?

Anaphylaxis is a medical emergency that requires immediate action.
Unlike mild allergic reactions, it affects breathing, circulation, or both, and can rapidly become life-threatening.
If any of the following signs are present, immediately follow the ASCIA Action Plan for Anaphylaxis (Red), administer adrenaline if available and prescribed, and call triple zero (000). Delaying treatment significantly increases the risk of serious complications.
Signs of a severe allergic reaction (anaphylaxis) include:
- Persistent dizziness or collapse
- Swelling tongue or tightness in throat
- Pale and floppy (young children)
- Difficult or noisy breathing, hard to talk, wheeze or persistent cough
- Stomach pain, vomiting (note: these are signs of anaphylaxis for insect allergy)
These symptoms should never be ignored or monitored without taking action.

Importance of the ASCIA Action Plan
The ASCIA Action Plan for Anaphylaxis (Red) was developed by the Australasian Society of Clinical Immunology and Allergy.
It provides a clear, evidence-based guide for responding to severe allergic reactions.
The plan helps responders recognise anaphylaxis quickly and outlines the immediate actions required, including administration of adrenaline and calling an ambulance.
Displaying ASCIA Action Plans in workplaces where people are known to be at risk improves preparedness and reduces uncertainty during emergencies.
Workplace first aiders should also be familiar with any individual action plans provided by colleagues with diagnosed severe allergies.
Why breathing symptoms should never be ignored
One of the most dangerous features of anaphylaxis is the rapid development of airway obstruction.
Swelling of the tongue, throat or upper airway can make breathing progressively more difficult. At the same time, narrowing of the airways can cause wheezing, persistent coughing or noisy breathing.
A person struggling to breathe may also have difficulty speaking full sentences or may become increasingly anxious as oxygen levels fall.
Breathing difficulties following exposure to a known or suspected allergen should always be treated as a medical emergency.
Time is critical during anaphylaxis
Unlike many other medical emergencies, anaphylaxis can worsen dramatically in a matter of minutes.
Prompt recognition, early administration of adrenaline where available and immediate contact with emergency medical services provide the best chance of a positive outcome.
Waiting to see if symptoms improve can be extremely dangerous.
Workplaces should ensure designated first aiders know:
- Where adrenaline auto-injectors are located
- Who has individual ASCIA Action Plans
- How to contact emergency services quickly
- How to assist until paramedics arrive
Fast action saves lives.
Creating an allergy-aware workplace
Managing allergies isn’t just about responding to emergencies. It starts with prevention.
Employers can significantly reduce risks by identifying potential allergens, consulting with workers who have known allergies and ensuring emergency procedures are understood.
Simple workplace controls may include:
- Identifying known allergy risks
- Encouraging workers to disclose severe allergies confidentially
- Maintaining first aid training
- Displaying emergency procedures
- Ensuring access to adrenaline auto-injectors where appropriate
- Reducing exposure to known allergens where reasonably practicable
Preparation creates confidence for everyone in the workplace.
Training builds confidence during emergencies
Many people worry about responding incorrectly during an allergic emergency.
Regular first aid training helps remove that uncertainty. Workers learn to recognise symptoms, understand the difference between mild reactions and anaphylaxis and respond quickly using established emergency procedures.
Practical scenario-based training is particularly valuable because it prepares people to act confidently under pressure rather than hesitate.
Effective workplace safety depends on preparation, practical systems and confident people. Training empowers workers to respond calmly and appropriately when emergencies occur, strengthening both safety culture and organisational resilience.
Recording allergic reactions helps improve workplace safety
Every allergic reaction provides an opportunity to improve workplace safety.
Recording incidents helps identify recurring allergens, evaluate existing control measures and strengthen emergency procedures.
Over time, incident reporting may reveal patterns that support improvements such as revised food handling practices, better pest management, revised cleaning products or enhanced staff education.
Learning from every incident helps reduce future risks.
Conclusion
Recognising allergy and anaphylaxis symptoms at work is an essential first aid skill for every Australian workplace.
While many allergic reactions remain mild, anaphylaxis can develop rapidly and become life-threatening within minutes. Knowing the difference between mild symptoms and the red flags of anaphylaxis allows workers to respond quickly and confidently.
If signs of anaphylaxis are present, immediately follow the ASCIA Action Plan for Anaphylaxis (Red). Prompt treatment and urgent medical assistance can save a life, while delays may have devastating consequences.
With good planning, regular first aid training and a workplace culture that encourages preparedness, Australian businesses can better protect their workers, visitors and customers from one of the most serious medical emergencies that can occur in the workplace.
References
Allergy & Anaphylaxis Australia - Signs and symptoms of an allergic reaction
Allergy & Anaphylaxis Australia - Workplace: Employer and employee responsibilities
ASCIA - ASCIA Action Plans and first aid plan for anaphylaxis