The Evolution of Allergy Skin Testing Equipment: From Traditional to Modern Tools

Allergies have been a condition that has been plaguing us for a sizeable amount of time; it’s certainly nothing new. Even in Singapore, skin allergies like contact dermatitis or eczema are quite common. Despite this prevalent and long-standing issue, there has been no definitive ‘cure’ for skin allergies, but there have been significant advancements/improvements in skin allergy testing over the centuries. For healthcare professionals to see greater development in allergy skin testing solutions, understanding the predecessors of testing methods is an important first step. 

In this article, we will discuss the importance of allergy testing in the medicine industry, tracing the evolution of traditional skin allergy testing methods to their current advancements. Furthermore, we will explore a few of the new innovations to give you an idea of the reliable and high-quality products for allergy skin testing in Singapore.

The History of Allergy Skin Testing

In the past, research on allergies overall was rather stagnant; it was only in the 1900s that it began to change, with Clemens von Pirquet coining the term allergy. He had noticed that patients vaccinated for smallpox using horse serum reacted quickly and severely to a second dose. He correctly deduced that the symptoms of the sickness were caused by the immune system producing antibodies to fight antigens, or foreign substances contained in the serum. The next few years showcased a spike in interest in this condition, with allergy clinics popping up across Europe and America while experiments began into immunotherapy. 

In the 1950s, our understanding of allergies advanced with the discovery of mast cells. Following this, in 1967, researchers identified immunoglobulin E (IgE), the antibody responsible for most allergic reactions. When an individual encounters an antigen, such as peanuts, their body triggers the production of a specific IgE antibody, a process known as sensitisation. 

That brings us to the present day, so what are the common testing methods for allergy skin testing today? 

Common Methods of Allergy Skin  Testing in Singapore

There are 3 commonly conducted allergy skin tests: Skin prick (scratch) test, Intradermal test, and Patch test. All these tests serve the same purpose: to help diagnose whether you have allergies. However, they do differ in approach, for instance:

• The Skin Prick Test is conducted by applying a sample of the suspected allergen onto your skin. Proceeding this, a lancet (a thin needle) will scratch or lightly prick the skin, enabling the sample to seep under. The results of the test can be seen in 15 minutes, evidenced by red or raised skin. 
• The Intradermal Test is done by using a tiny needle to inject possible allergens into the outer layer of your skin (epidermis). Providers use intradermal tests to check for airborne allergies, medication allergies, and venom/stinging insect allergies (such as bees, fire ants, and hornets) if initial skin prick testing is negative or questionable.
• The Patch Test is conducted by applying bandages (patches) on your skin that contain possible allergens. They help determine the cause of contact dermatitis.

All these methods showcase a stark and much-needed improvement from traditional allergy testing methods, which were severely limited in the capacity, speed, and accuracy they could test. Furthermore, the tools utilised for the purpose of allergy skin testing also show great promise. 

Common Devices for Allergy Skin Testing

The tools used for testing are just as important as the testing methods used by medical professionals. This is because high-quality devices ensure little variability in test results, ensuring there is no misdiagnosis and mismanagement of allergy symptoms. This is especially important if you consider conditions like anaphylactic shock. 

Two good examples of reliable allergy skin testing devices are the Multi-Test II and Duotip-Test II, designed by Lincoln Diagnostics. Let’s take a look at a few of their key features to see what makes them stand out. 

• Fast Results: The Multi-Test II is designed to apply test samples fast with its uniform loads. It is able to apply 8 tests in 2 seconds. On the other hand, the Duo tip has two precision sharp points that aid in effectively and quickly administering the test. 
• Easy to use: Both of these devices are well-designed, making them highly convenient to use. For instance, the Duo tip test gripping handle makes administering the test easier. 
• Accurate results: This is especially true when you look at the Multi Test. It has a high degree of sensitivity, specificity, and low variability of results.

These skin test allergy testing devices have certainly upheld the standards of allergy testing in the modern age, striving for further improvement and innovation. If you want access to these products, you should place your order with us at Astromed!

We are a medical company in Singapore that distributes high-quality, medical-grade allergy testing solutions, which are recommended by numerous medical professionals. So, if you want to place an order or have further enquiries regarding our product range, feel free to contact us.