Photodynamic is the latest technology for acne treatment originating from Europe and the United States. It is a new technology that uses photodynamic reactions for disease diagnosis and treatment based on the interaction of light, photosensitizers and oxygen.
Photodynamic therapy for acne works mainly through four main aspects of the acneogenesis mechanism.
The mechanism of action of photodynamic therapy for acne
1. Photodynamic therapy directly kills Propionibacterium acnes, Staphylococcus epidermidis and Malassezia.
2. Photodynamic methods directly damage sebaceous glands, reduce the number of sebaceous glands, inhibit sebum production, and have good oil control effects.
3.Photodynamic has a strong anti-inflammatory and immune regulating effect.
4. By acting on the keratin-forming zoo to reduce hair follicle obstruction and promote the orderly arrangement of fibroblasts to reduce the formation of acne pits, it can significantly restore the normal appearance of the skin and even make the skin more lustrous, achieving more satisfactory clinical results.
What are the precautions for photodynamic acne treatment?
Slight itching, burning and pins and needles may occur during treatment, which are normal reactions.
If the pain or burning sensation is severe and unbearable, please inform the doctor in time for individualized treatment adjustment (adjustment of light time and light intensity), or use a local cooling device or numbing medicine to relieve pain.
After treatment, the following reactions may occur
1. Edematous facial erythema
During this period, local cold compress or cold spray is needed to reduce the phenomenon of facial edema-type erythema.
2.Dry skin
It can be relieved by itself, and can be relieved by applying cold compress or local topical moisturizer to the affected area to relieve local dry skin.
3.Local crusting and flaking
It can be relieved by itself, and can be relieved by cold compress or topical moisturizer on the affected area.
4.Temporary pigmentation
Some patients will have temporary hyperpigmentation after treatment, which generally does not require treatment and can be relieved by itself within 1-3 months. Of course, it is very important to avoid light after treatment. When you go out, you need to apply sunscreen and wear a sun hat to avoid aggravating the occurrence of hyperpigmentation.
5. A very small number of patients may experience reactive acne after receiving photodynamic therapy, i.e., a transient increase in acne.
This often occurs around the mouth and can generally be completely relieved in about ten days to a month without special treatment, and does not leave scars. After the onset of reactive acne, the results will be even better if treatment is continued. When more serious reactive acne occurs, such as large new acne, pustules, or even oozing and crusting, there is no need to panic (this is one of the normal reactions after photodynamic therapy). At this time, it is necessary to strengthen the wet compress on the affected area and avoid scratching the affected area to avoid secondary infection.
Daily protective measures after photodynamic therapy
1, after photodynamic therapy to special facial skin moisturizing and cold compresses, can significantly alleviate the dryness and redness and a series of adverse reactions.
2, pay attention to avoid light and sun protection, especially within 48 hours after the end of the treatment.
3, any discomfort, please seek medical attention in a timely manner.
Points for daily attention during treatment.
1, during the treatment period, smoking and alcohol should be prohibited, pay attention to the combination of work and rest, avoid spicy and stimulating diet, and maintain a good mood.
2, avoid high sugar, high-fat food, diet is light, eat more fresh fruits and vegetables; regular work and rest, maintain adequate sleep.