The side effects of ultra photorejuvenation mainly include causing skin itching, dryness, burning sensation, and may cause hyperpigmentation, acne, blisters and so on. Ultra photorejuvenation is to produce continuous intense pulsed light with the help of instruments, which acts on skin tissues and target tissues such as subcutaneous melanin, hemoglobin, and water to break down melanin to achieve the effect of removing spots, close capillaries to achieve the effect of removing redness, and stimulate the skin’s collagen fibers and elastic fibers to rearrange to achieve the effect of rejuvenating the skin. Improper operation or improper post-treatment care will have the following side effects: 1. For people with sensitive skin, it is easy to cause itching, dry skin or even redness, swelling and burning sensation, after treatment, ice compresses and moisturizing can improve this discomfort. 2. Ultra-photonic skin rejuvenation energy is too high or ice is not timely enough, will lead to thermal damage to the soft tissue of the skin and blisters and other scald-like appearance, based on poor care will further lead to skin infection; this situation should pay attention to keep the traumatic surface clean and dry, and promptly go to the regular medical institutions to deal with the consultation. 3. After the ultra-photorejuvenation, the skin will be in a more sensitive period in 1-2 weeks, if you do not pay attention to sunscreen and moisturizing during the recovery stage, it is also easy to have skin pigmentation; if the pigmentation is mild, it can be observed conservatively, and the external use of drugs to promote the absorption of pigment, if it does not see any reduction in 2-3 months, it is recommended that it go to the regular medical institutions for diagnosis and treatment. Ultra-photorejuvenation treatment must go to a regular medical institution to consult a professional doctor’s advice. Meanwhile, after the ultra-photorejuvenation treatment, you should pay attention to sun protection to avoid ultraviolet rays damaging the skin, affecting the effect and inducing side effects.