Hi,
Welcome to the ehealthforum and I am really glad to help you out.
First of all you should get the diagnosis confirmed by means of a biopsy skin. In Winkler's disease, the most protuberant part ear is affected which is generally the helix in men and the antihelix in women.
If the diagnosis is confirmed then best will be to consult a dermatologist or a plastic surgeon in this regards.
It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided. For exact diagnosis, you are requested to consult your doctor. I sincerely hope that helps. Take care.