7 everyday things you didn’t know you could be allergic to

When we think of allergies, we often imagine reactions to pollen, pet dander, or certain foods like peanuts. But allergies can be caused by a surprising range of everyday things you might never have considered. Here are seven unexpected things you didn’t know you could be allergic to…

1. Water (Aquagenic Urticaria)

While it sounds strange, some people are actually allergic to water! This rare condition, called aquagenic urticaria, causes painful hives and welts when skin comes into contact with water, regardless of its temperature. Even more surprising, this reaction isn’t limited to just swimming or bathing – it can also be triggered by sweat or tears. Though drinking water doesn’t typically provoke the same reaction, daily activities like washing hands or sweating can become a source of discomfort for those affected.

2. Exercise

Exercise is generally thought of as beneficial, but for a small percentage of people, physical exertion can lead to dangerous allergic reactions. Exercise-induced anaphylaxis is a condition that causes hives, swelling, and in severe cases, anaphylactic shock. For some, this reaction is linked to specific foods eaten before exercising, but for others, physical activity alone is the trigger. While it’s rare, it can be life-threatening and requires careful management.

3. Jewellery (Nickel allergy)

Nickel is a metal commonly used in jewellery, such as earrings, necklaces, and rings, and many people develop allergic reactions to it. Nickel allergy is one of the most common causes of allergic contact dermatitis, a rash that occurs when the skin comes into contact with the metal. But it’s not just jewellery that can trigger this reaction – nickel is also found in everyday items like watchbands, belt buckles, eyeglass frames, and even some smartphones.

4. Cold temperatures (Cold Urticaria)

For some people, exposure to cold air, water, or objects can lead to an allergic reaction known as cold urticaria. The cold triggers hives, swelling, or more serious reactions like fainting or anaphylaxis. Symptoms typically appear within minutes of exposure and can vary from mild irritation to life-threatening complications if the person is submerged in cold water. For these individuals, something as simple as grabbing an ice-cold drink or stepping into a chilly room can be risky.

5. Sunlight (Solar Urticaria)

Although sunlight is vital for our health and well-being, a rare condition called solar urticaria makes some individuals allergic to it. Even short exposure to sunlight can cause itchy rashes, redness, or hives. Reactions usually occur within minutes of sun exposure and can be extremely uncomfortable. In severe cases, the reaction can spread to larger areas of the body, making sun protection essential for those affected.

6. Touch (Dermatographia)

In people with dermatographia, even light pressure or scratching on the skin can result in raised, red welts. Sometimes called “skin writing,” this condition makes the skin overly sensitive, and even mild touches can trigger a visible reaction. While the welts typically disappear after a few hours, they can be uncomfortable and embarrassing for those who experience it regularly. Simple actions like rubbing the skin, wearing tight clothing, or even scratching an itch can lead to noticeable marks.

7. Vibration (Vibratory Angioedema)

Believe it or not, even intense vibrations can trigger allergic reactions. Known as vibratory angioedema, this condition occurs when a person’s skin or body comes into contact with strong vibrations, such as from using a lawnmower, riding a motorcycle, or even during physical activities like jogging. The vibrations cause swelling in the affected area, and the reaction can last from minutes to several hours. While rare, this allergy can make certain everyday activities quite challenging for those who experience it.