“…The photoelectric therapy equipment and parameters are exactly the same on both sides of the same subject.After treatment, a medical mask was applied on the face, and cold therapy was given to relieve pain. The subjects were instructed to avoid using cleansers, topical skin care products containing irritating and medicinal ingredients, avoid excessive friction on the skin, and pay attention to sunscreen.2.4 | Outcome measures2.4.1 | Comprehensive evaluationDuring the treatment, the subjects cooperated quietly, did not complain of pain, and the operation was successfully completed, which is defined as excellent; During the treatment, the subjects complained of pain, but still tolerable, and cooperated with the completion of the treatment, which is defined as good; during the treatment, the subjects complained of severe and unbearable pain, and even involuntary movements happened, which is defined as fair 2. 2.4.2 | Houpt behavior rating scaleSubject tolerance was assessed on a scale of 1-6 3.…”