In applications of medical cosmetology, cosmetologists or dermatologists usually need to evaluate curative effects of cosmetics, medicines, or surgeries according to skin symptoms on a human face. In this thesis, we assemble a high-resolution camera and many light sources to capture high-quality face images. Next, we use deformed template method to extract three principal skin parts on the face: T-Zone, the left cheek, and the right cheek. Finally, we use our proposed local color segmentation to detect and quantize skin symptoms. We aim to interpret curative effects by symptom measurements.