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♦What is laser light

Laser light is a high-energy beam that can emit energy within a short period of time, causing a thermal effect on the tissue and resulting in selective destruction. Laser is not radiation or radiation rays; therefore, it is free from mutation or carcinogenic concern. Laser can cut, seal, and evaporate skin tissues and blood vessels. It can generate a strong beam of a single wavelength whose intensity and impulse time can be adjusted. Laser’s specific wavelength and power output determine its medical use.

 

♦Medical Laser Classified According to Function

Laser is one of the most popular microsurgeries. There are many types of laser with a wide range of therapeutic applications. It can be classified according to function into five types: gasified resurfacing laser, pigment laser, vascular laser, hair removal laser, and rejuvenation/de-wrinkle laser.

 

♦Applicable Symptoms for Laser Treatment

Dark Spots  

Freckles and sunburn: laser has an excellent effect on light spots, usually achieving complete removal with just one or two therapy sessions, although relapse is common. Ota nevus, café au lait spots, Baker’s nevus, other birthmarks, as well as cheekbone spots require repeated treatment. After the initial treatment, the pigments may appear darker than usual, but they will gradually subside and improve.

Liver spots: The existing hybrid laser treatment can improve liver spots previously considered impossible to improve.

Moles  

Small moles can be directly burned and removed through gasified laser or pigment laser. However, for moles that are larger or thicker, laser becomes less effective. It is recommended that moles of this type be removed through surgery.

Body Tattoos and Eyebrow Tattoos

Currently, black or blue series of dyes can be removed through laser. General eyebrow tattoos may require one to two laser sessions to remove, while body tattoos may need 5-10 laser sessions. Red and yellow dyes are difficult to remove through current laser treatment.

Scars and Pits

Laser treatment has produces good results on small scars and wrinkles. However, skin reddening and darkening may result, which may take up to months to recover. Therefore, patience and care are required. Pimple pits can only be partially improved, and carbon dioxide laser or sebum laser are the most commonly used. It usually takes up to 2-6 months to see maximum treatment and recovery results.

Hair Removal Laser  

Hair removal can only undermine the growth of hair follicles. In fact, only 30%-40% of hair removal can be achieved in one therapy. Hair removal should therefore be done in phases, usually once every 2-3 months. Four or five therapy sessions are needed to remove armpit hair and leg hair, while beard removal may take up to 8-10 sessions. The troublesome part is that if insufficient energy is applied, hair growth can only be stopped temporarily, rather than permanent hair removal.

Angiogenesis and Birthmarks 

Small and superficial vascular proliferation and expansion can be removed through laser. However, the laser effectiveness is limited by blood vessel size and depth. Thick varicose veins and deep hemangiomas are difficult to remove completely.

 

♦Advantages of Laser Surgery

1. Short treatment time, faster wound healing.

2. Lower risk of infection.

3. Only outpatient clinic treatment rather than hospitalization is needed.

4. Work is not affected during treatment.

5. It is another choice of surgical treatment.

 

♦Selection of Laser Injections

1. Correct diagnosis of lesions.

2. Select appropriate laser treatment whose laser wavelength must be reached and is absorbed by the target.

3. The impulse width is preferably shorter than the heat distribution time of the target.

4. For the adjustment of energy, adequate energy is needed to destroy the target.

5. Choose a suitable light spot, as its size is closely related to the treatment effectiveness.

6. Provide sufficient health education before and after surgery.。

♦Second Reminders

Consult a certified surgeon. Laser is only a tool; therefore, the laser type, model, and venue equipped with the latest equipment are not primary considerations. The surgeon that operates the equipment is the key. Do not be misled by high-tech equipment and advertising. Choosing an experienced doctor with professional ethics is the key, as he will ensure treatment results and avoid injury.

 

♦Potential Problems after Treatment

Pigmentation

Some people encounter darkening after undergoing laser spot-removal treatment. This is a pigment reaction after laser, a reaction developed by some skin types after being exposed to laser as well as the action of postoperative inflammation and pigmentation. The pigmentation (darkening) is temporary, which usually gradually subsides 2-3 months after surgery.

Peeling

The treatment site develops “whitening” due to excessively strong laser intensity or the patient’s physical constitution being prone to white marking production. The phenomenon often appears in discolored spots. The condition will subside six months to one year after surgery.

Persistent Erythema        

It is common in patients undergoing deep resurfacing. The persistent erythema is commonly caused by wound infections and deep skin tissue damage.

 

♦Unsuitable Targets for Laser

Please consult the surgeon before undergoing treatment.

1. Women that are pregnant or are planning pregnancy 。

2. Those who apply acids or whitening products before surgery.。

3. There is a viral infection at the treatment site.。

4. Those with allergic skin, light-sensitive skin or taking light-sensitive drugs (such as A acid).。

5. Those with skin lesions or immune system anomalies (such as: Lupus erythematosus).。

6. Please inform the surgeon if you have mounted cardiac pacemakers, IUD, dentures, or other metal implants.。