← Dermatology GlossaryBook an appointment
Substance tested in patch testing
Nickel sulfate
The most common contact allergen: costume jewellery, buckles, metal buttons, glasses.
A positive test explains eczema at the points of contact with metals; avoidance is the treatment.
This information is general and does not replace a consultation — diagnosis is always made in person. Mutual Clinic Braga 253 772 064 · Mutual Clinic Arcozelo 227 537 000 · B.clinic Funchal 291 142 030.