Mobile Phones
Nickel is an essential material for the operation of mobile phones. It is used in the microphone diaphragm, in electrical connections and capacitors for effective and low-power operation, or it may be a minor or major element of the chemistry of the battery of the phone. Nickel may also be used to shield users from electro-magnetic radiation and signals from electro-magnetic interference.
When used on external surfaces to give a desired aesthetic appearance, however, nickel may pose a hazard to individuals with an existing allergy to nickel. There have been some anecdotal reports of individuals experiencing flare-ups of existing nickel allergies when nickel-plated mobile phone surfaces are placed against the skin (i.e., cheek, ear or hand) for long periods of time.
Clearly the level of risk will depend on the pattern of individual use, the environment in which the phone is used (hot and humid, for instance), and the degree of susceptibility of the individual to nickel dermatitis.
Purchasing a new phone
If you are allergic to nickel and purchasing a new phone, you may wish to ascertain whether nickel is used on the exterior surfaces of the phone and, if so, which surfaces. If nickel is present, is there a protective coating or protective case (a type that fits the phone like a glove and is effectively part of the phone unit) that will provide an effective barrier between the nickel and your skin? If not, you may want to consider an alternative model of phone.
Using an existing phone
If you are allergic to nickel and suspect that the phone you are using has nickel on the exterior surface, consider use of a protective case or use the phone in the "hands-free" mode. Remain alert for any symptoms and, if necessary, consider changing your phone.
For more on nickel allergy go to "Nickel Allergic Contact Dermatitis".
