10 Allergy Myths in Singapore That Are Putting Your Health at Risk
Myth 1: If I have eaten it before, I cannot be allergic to it
Truth: Food allergies can strike at any age. Many people believe that if they have consumed something their entire lives without incident, they cannot suddenly develop a food allergy to it. In fact, adult-onset allergies are increasingly common.¹ Factors such as stress, illness, or gut health can cause the immune system to change over time.² Unexpected allergic symptoms such as hives, stomach cramps, or difficulty breathing after consuming something familiar could signal a newly developed food allergy. Just because your favourite food has never affected you does not mean it will always be safe. Testing for allergies helps confirm the cause and prevent future allergic reactions.
Myth 2: Only children get allergies.
Truth: Adults are not immune to allergies. Many allergies begin in childhood³—some outgrow them, while others develop new ones at later stages in life, even in their 30s, 40s, or beyond. Development of new allergies can be attributed to the “allergic march". It is a term that describes the natural progression of allergy diseases, often beginning in infancy and continuing through childhood and adulthood.⁴ For example, an infant with eczema, a skin allergy, may develop allergic rhinitis as they grow older. Singaporeans are constantly exposed to allergens such as dust mites, mould, and new foods. It is important not to rule out allergies just because you are "too old". Allergy testing helps catch late-onset allergies.
Myth 3: Morning sinus symptoms mean I have a sinus infection.
Truth: You might be dealing with allergic rhinitis (hay fever). If you wake up sneezing, sniffling, or feeling congested⁵, you might brush it off as “just a sinus”. In Singapore, it is common to refer to any nasal issue as "sinus", but "sinus" is not a medical condition. The term simply refers to the four paired cavities (spaces) in your head⁶ — not a condition itself. The real issue could be allergies, especially if your symptoms are worse in the mornings, improve during the day, and return regularly.⁵ Furthermore, if you do not experience fever or there is an absence of thick green mucus, there is a high chance it is allergic rhinitis. Allergic rhinitis is extremely common in Singapore due to dust mites, mould, and indoor allergens.⁷ Going for an allergy test helps differentiate between a sinus infection and an allergy, pinpointing what exactly is going on.
Myth 4: Allergies are not serious, just annoying.
Truth: Allergies can have serious health consequences. It is tempting to think of allergic symptoms as “a bout of sneezes” or “itchy skin", but they can have serious health consequences. Allergies can trigger asthma attacks⁸, disrupt sleep⁹, and severely impact quality of life.¹⁰ In extreme circumstances, allergic reactions may result in anaphylaxis, a potentially fatal condition. In fact, life-threatening allergic reactions in children, such as anaphylaxis, increased sevenfold in the last decade.¹¹ Getting tested for allergies helps identify risks before emergencies happen.
Myth 5: Singapore’s clean air means allergies are not a problem here.
Truth: Most allergy triggers are found indoors. According to IQAir’s Air Quality Index in 2024, Singapore ranked 94 out of all countries for air quality.¹² However, our warm and humid environment is perfect for the growth of mould, dust mites, and cockroach allergens, which are all common allergy triggers for allergic rhinitis and asthma.⁸ Air-conditioned spaces, while comfortable, can also recirculate allergens. Even if you spend most of your time indoors, you are not necessarily safe from allergic reactions. Furthermore, indoor allergens such as pet dander might exacerbate your allergy symptoms without your knowledge. Hence, testing for allergies will help identify the sensitising allergens, which can outline an exposure reduction strategy.
Myth 6: Avoiding peanuts is enough to keep me safe
Truth: Many food allergens are found in sauces, processed foods, and dressings.¹³ People often think that they will be fine if they avoid the one food they are allergic to, like peanuts or shrimp. However, shrimp in sambal and peanut oil in soup are just two examples of how prevalent these allergens are in our daily lives. Furthermore, you might also have multiple food allergies or react to a similar protein in a different food (cross-reactivity). Cross-reactivity occurs when the body's immune system identifies the proteins in one substance and the proteins in another as being similar.¹⁴ Allergy testing not only confirms your known allergies, but it also reveals hidden ones, allowing you to take safer, more informed precautions.
Myth 7: Allergy medication is all I need to manage my allergies.
Truth: Medication for allergies, such as antihistamines, nasal sprays or decongestants, does not solve the root problem. In some cases, excessive or long-term use of antihistamines can even cause drowsiness, dry mouth, or dizziness.¹⁵ Antihistamines are also ineffective in treating severe allergic reactions like asthma attacks and anaphylaxis, which require the use of inhalers and EpiPens. Instead of constantly managing your allergic symptoms, it is better to get tested and understand what you are allergic to. Identifying triggers through allergy tests can help you address the problem more effectively, potentially reducing your need for daily medication.
Myth 8: Allergy tests are painful and expensive.
Truth: Allergy tests are generally quick and painless¹⁶, some are even subsidised. Many people are hesitant to go for allergy tests because they think it will hurt or cost too much. In reality, common tests such as skin prick tests barely penetrate the skin's surface, whereas Immunoglobulin E (IgE) blood tests usually take less than five minutes to complete.¹⁷ Furthermore, some of these tests are subsidised through polyclinics or covered under insurance with a GP referral.¹⁸ It is important to consult a healthcare professional to diagnose and treat allergies. Testing is safer than guessing, and it is always better to be safe than sorry.
Myth 9: If I have a milk allergy, I am allergic to all dairy.
Truth: You could only be allergic to a specific component of milk. Milk contains several proteins, such as alpha-lactalbumin, beta-lactoglobulin, and casein.¹⁹ Some people are only allergic to one or two of these. Once these allergens are removed, dairy becomes safe to consume. For instance, alpha-lactalbumin and beta-lactoglobulin are heat-sensitive and break down when cooked.¹⁹ This means some individuals may be allergic to raw milk but can tolerate baked milk. In fact, research suggests that around 75% of children with a milk allergy can safely consume baked milk products.²⁰ Furthermore, not all dairy products have the same protein composition. For example, certain cheeses may lack the specific protein triggering your allergic reaction, so you might be able to consume cheese but not drink milk. As milk allergies are extremely common among children, it is crucial to get them tested to ensure their safety. Only a proper allergy test can help identify which protein you are reacting to and guide what you can safely consume.
Myth 10: Food intolerance and food allergy are the same thing.
Truth: Food intolerance and food allergies are fundamentally different. Food intolerance involves the digestive system and is usually not life-threatening.²¹ It often happens when our bodies lack the enzymes required to process components of food. For example, lactose intolerance occurs when there is insufficient lactase to break down lactose, the sugar found in milk.²² This can lead to allergic symptoms such as bloating, abdominal cramps, and diarrhoea.²¹ In contrast, food allergies involve the immune system.²¹ It occurs when the body produces IgE antibodies to a certain food.²¹ This can range from mild hives to life-threatening allergic reactions such as asthma and anaphylaxis. Furthermore, food allergies are self-reported six times more often than their actual prevalence, causing unnecessary worry and avoidance of food.²³ As allergic symptoms sometimes overlap, going for an allergy test helps distinguish between food intolerance and a food allergy, ensuring the correct diagnosis and treatment.
Conclusion
Allergies are more than just a minor inconvenience; they can quietly affect your skin, breathing, energy levels, mood, and even long-term health. Despite this, many Singaporeans continue to suffer from undiagnosed allergies due to widespread myths and misconceptions. Understanding what allergies are and are not allows you to control your allergic symptoms rather than simply managing them. Getting tested for allergies is a simple but effective step towards clearer answers, better treatment, and a healthier lifestyle. If something feels "off" in your body, do not dismiss it. It is possible that you have an allergy, and it is worth finding out.
References
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[12] Singapore Air Quality Index (AQI) and Air Pollution information | IQAir. (n.d.). https://www.iqair.com/sg/singapore
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[16] Team, T. (2025, April 29). Allergy tests: types, procedures, and what to expect. Thomson Medical. https://www.thomsonmedical.com/blog/allergy-test-singapore
[17] Allergy blood test. (n.d.). https://medlineplus.gov/lab-tests/allergy-blood-test/
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