What can you do yourself?

Avoid temporary so-called black henna tattoos.

If you decide to dye your hair, either at home or at a hairdressing salon, you should be aware of the risk of developing an allergic reaction to the product.

If you have had a rash after dying your hair or eyelashes/eyebrows or after having a temporary tattoo, you should seek advice from a dermatologist and have an allergy test.

Allergic reactions to hair dye can be severe.