Hello , My 21 Year Old Daugther Had Two Moles

hello , my 21 year old daugther had Two moles surgically removed recently. They both showed compound dysplastic nevus with atypical intraepidermal melanocytic proliferation. The doctor said if they weren't removed there was a possibility they could develop into melanoma. Is there any natural herb or therapy I can give her to prevent this from happening again ?? Im very concerned