Health Canada and the U-S Food and Drug Administration have issued health alerts on two Eczema skin creams.
But Canadian dermatologists say the warnings are overkill.
Health Canada has linked Elidel and Protopic ointment to a potential cancer risk.
The agency is worried about a connection to lymphoma.
The advisories don’t advise patients to stop using the treatment but do warn that they should be used only as directed.
The drug companies have also been asked to update safety information on the labels.
The Canadian Dermatology Association says it has been receiving numerous calls from worried patients.
Dermatologists say the warning is unnecessary and the risk is minimal if it exists at all.
Eczema is an immune disorder than can be very painful and result in serious infections.