Cyst/pimple like structure on the mole removal - incision. (photo)

I recommend following up with a cosmetic dermatologist for an evaluation and after care. I recommend silicone gel with growth factors and hyperbaric oxygen to promote healing. See an expert. Best, Dr. Emer

Hi There
Thank you for your question and pictures.
I really would suggest that you see the doctor who did the treatment just to check the healing. If the stitches were transparent they do not need to be cut out as they break down but if they were blue then definitely they need to be removed. 
The clear stitches can sometimes leave the whitish residue but you need to check why this is.
Kind Regards
Dr Maini