A nickel allergy causes symptoms such as redness and itching. We explain what symptoms the allergy still has and which treatment helps.
What is a nickel allergy?
The nickel allergy is a so-called contact allergy and is one of the most common allergies in Germany. When it comes to contact with nickel, among other things, itching and redness – including just a few micrograms. The nickel allergy itself is not curable, but the symptoms can be treated with ointments (eg with cortisone). Affected persons should avoid nickel-containing objects.
Nickel allergies: How does an allergic reaction develop?
In contact with nickel-containing or nickel-releasing objects, it usually only takes a few hours for our slightly acidic sweat to release so-called nickel ions, which then penetrate the skin barrier. That in turn activates the immune system. Before the actual nickel allergy, there is often a so-called sensitization, in which the immune cells begin to classify nickel as harmful.
What is nickel actually?
Nickel is a metal. It is vital for the body as a trace element, and it is also found, for example, as a chemical element in various alloys. There are many nickel-containing products such as jewelry, batteries, coins or buttons. But there are also foods that are not just low in nickel.
What are the symptoms of nickel allergy?
At the affected skin , various symptoms of allergy occur. These include:
- itching
- Blisters and nodules (“papules”)
- redness
- wetness
Sometimes just the itching can be strong and annoying – but you should scratch in any case. This not only delays the healing process but can also promote inflammation. Frequent nickel contact can lead to permanent skin changes. In this case we speak of a chronic allergic contact eczema.
Treatment of nickel allergies: That’s what the dermatologist says
A nickel allergy persists throughout life – unlike, for example, hay fever , it can not be stemmed by hyposensitization . But the symptoms are easily managed by treating the skin with cortisone-containing ointments or creams. In addition, nickel allergy should avoid using nickel-containing articles as much as possible. For many labels, the nickel content is noted.