There is a treatment called Mohs surgery. It is done by a dermatologist specializing in Mohs surgery. The average dermatologist does not do this procedure. They remove the area in layers until no cancerous cells remain. It is an arduous process. It can take several hours as the surgeon only will remove as much tissue that is needed and it is done a layer at a time and then you go to the waiting room and wait while the tissue is evaulated to determine if the process needs to be repeated. It can be done in a doctors office but again only by one who actually specializies in this treatment. Then if necessary your mother can be referred to a plastic surgeon as it is on her face and when dealing with melanoma more than the actual size of the tumor needs to be removed. The depth of the melanoma is important for staging. Also, if there is any ulceration. Pending on the depth etc. the dermatologist may require follow up chest x-rays and follow up to check for lymphadenopathy or any lymph node swelling which could indicate spread. There is a sentinel lymph node biopsy that is sometimes done shortly after the initial tumor area is addressed and again factors such as the depth of the tumor etc. will determine if this is warranted in your mother's case. Removing the tumor and staging is important now to determine her risk for future problems. I wish her the best.