This is an additional service provided to the user where in the it is diffrentiated on the basis of the dlib machine learning model,the dlib model as of now compares between acne and pimple with it's 2 of types classifier, this in the long run maybe ivolved to classify various skin and eye diseases.
A simmilar technique can also be used with toungue to detect various pancreatic and intestenial disorders along side with tumour detection to detect cancerous tumours