Mole biopsy with abnormal cells?

I had a mole removed from my left shoulder/neck area. I was told all abnormal cells were removed from biopsy procedure. I was not given other information and I am not educated in this matter. I had severe allergic reaction from the band aid and had infection. The red spots spread to the front of my neck and face. I am taking antibiotic right now. I am using gauze and paper tape and still gets irritation from tape. Should I go back and ask for surgery just to make sure no abnormal cells left?