freckle
Conditions
Interventions
picosecond 730nm laser:Picosecond 730nm laser therapy
nanosecond 755nm laser:Nanosecond 755nm laser therapy
Sponsors
Affiliated Hospital of Zunyi Medical University
Eligibility
Sex/Gender
All
Age
18 Years to 80 Years
Inclusion criteria
Inclusion criteria: All 30 patients were clinically diagnosed with freckles
Exclusion criteria
Exclusion criteria: Suffering from autoimmune diseases, tumors, diabetes, cardiovascular diseases, etc; Suffering from skin diseases (such as psoriasis, eczema, skin cancer, etc.), or obvious erythema, trauma, tattoo, etc. in and around the test area; Patients with obvious pigment metabolism disorder, endocrine disorder, adrenal cortex hypofunction, and advanced vitiligo; Female patients who are pregnant, pregnant or lactating; Had taken retinoic acid drugs within 6 months; Photoallergic patients; Patients who had received any optoelectronic treatment or chemical exfoliation of the face within 1 year;
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Stain score;Incidence of pigmentation; | — |
Secondary
| Measure | Time frame |
|---|---|
| Pain score;Subjective satisfaction; | — |
Countries
China
Contacts
Public ContactGang Yuan
Affiliated Hospital of Zunyi Medical University
Outcome results
None listed