My daughter has a black mole that appeared a year ago and now she is getting open lesions on her foot and she can not stop itching it. now she is having persistent headaches?

These findings/symptoms are likely unrelated to each other. She should be seen by her doctor for diagnosis and care.

Where is the mole in relation to the lesions. do the lesions have color? Does she have swelling above and/or below the mole and or lesions? Is there pain? Is there redness around the mole or lesions? Do you have a picture? Basically, you need to have a complete exam to figure out what is going on with possible biopsies and lab examinations.has she been overseas? Does she walk barefoot? Do it soon.