Never be careless. Eight points to note about laser hair removal:
Laser hair removal is a common medical hair removal method currently available, and there are many precautions to take during the treatment. Experts remind us that careful consideration is needed when choosing laser hair removal treatment, and it should not be carried out blindly.
1. Patient selection: The best candidates are those with little skin pigmentation but deep hair pigmentation. As the hair color lightens and the skin color darkens, the difficulty of laser treatment increases.
2. Anesthesia: Regardless of the type of laser used, the intensity of pain varies in different parts of the body. The skin's sensation is proportional to the depth of the hair color to be treated. A cooling system can alleviate some of the pain.
3. Treatment time for laser hair removal: Hair falls out in cycles. Permanent hair is the best target for laser treatment. Choose the timing based on different areas. The hair growth cycle aligns with the area’s hair growth, and treatment should be conducted when most of the hair is in the growth phase. The relative resting phase for hair is short (6-12 weeks), with treatment intervals of 1 month. For trunk and limb hair, the resting phase is 12-24 weeks, with an interval of 2 months.
4. Number of treatments: Continuous treatment is required until the hair is reduced to the desired amount, usually 2-6 sessions.
5. Treatment for dark skin: For patients with dark skin, low-flux laser treatment should be chosen first to prevent skin reactions such as scarring or pigmentation changes. The patient should be assessed after several weeks. For dark skin, safe and effective treatment requires less absorption of melanin in the skin. Using long-wavelength lasers can reduce surface melanin affinity, requiring high flux and long pulse duration. Skin cooling is the most important.
6. Edema and redness around the hair follicles: If the hair follicle unit absorbs enough energy, results usually appear within 3-5 minutes. This generally involves local congestion and edema. If this does not occur, the doctor can increase the flux within a safe range. If the hair is very fine and light in color, even at the highest setting, the reaction may be mild. If no cooling is applied to the surface, the melanocytes on the skin surface will react.
7. Complications of laser hair removal: When using lasers, if the flux is appropriate and the skin is cooled, scars will not form. Hyperpigmentation is the most persistent side effect. Even without treatment, it usually disappears within 6 months.
8. Postoperative care for laser hair removal: After surgery, most patients feel a slight sunburn-like pain, which generally does not require treatment and disappears within 2-3 hours. Mild redness and swelling may occur after treatment, lasting 2-3 days on the face and up to 7 days on the trunk, but generally no bandaging is needed. The treatment area should be carefully washed with soap and water twice daily. Small blisters can be treated with bacitracin three times a day until they disappear. If exposed to sunlight within 6 weeks, sunscreen should be applied.
Reminder: Experienced experts from regular hospitals should conduct the procedure to ensure the safety of the hair removal surgery. Therefore, selecting a good hospital and expert is the prerequisite for successful hair removal. If you have any questions, you can register as a member or call the hotline for consultation. (Editorial Responsibility: Tang Xiaoxia)
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