Xiao Liu, who is engaged in operating the laser marking machine, was accidentally hit by the laser beam. 

      There was a pimple in the hit, which was very painful to touch, but the hospital said it was just an ordinary burn. 

      But Xiao Liu felt that the pain of acne did not feel like burns, as if it was caused by radiation. 

1. Let's explain the harm of being hit by a laser marking machine: 

The first type of laser that can hurt your skin should be a CO2 laser or a fiber laser with the same wavelength as the CO2 laser. 

It's just a burn. Your skin absorbs light energy and converts it into heat, the same principle as marking. 

The laser wavelength used by the marking machine is very different from the harmful ray wavelength, where does the radiation come from. 

Moreover, the marking machine in order to ensure the marking effect and line beauty, the laser wavelength will be guaranteed in a very narrow range of bandwidth, with a huge difference in the wavelength of the radiation will not. 

Please rest assured! 

2. After being burned, what should I do to deal with it: 

Method 1: neutralize with cold compress. 

Dr. Steven Bauer, an associate professor of clinical dermatology at the University of Minnesota School of Medicine in Minneapolis, believes that a cold compress helps neutralize sunburn. During cold compress, towels or clothes can be put into cold water, wrung out, and placed on the skin: "when the water gradually evaporates, it has a cooling effect, which helps control sunburn and pain." 

He suggests applying it 3-4 times a day for half an hour each time. " 

Method 2: use emulsion protection. 

Dr. Bauer says 1% hydrocortisone lotion is also good for sunburn pain. 

"apply the painful area 3-4 times a day, don't wash it off, apply it repeatedly," he suggested. " 

The effect of cold compress is better when it is applied for the first time. 

Method 3: painkillers. 

"both ibuprofen and aspirin can relieve the pain and inflammation of mild sunburn," Dr. Schaz said. " 

Severe sunburn requires more powerful anti-inflammatory drugs or corticosteroids. "this can have gastrointestinal side effects, and you should ask your doctor if it is appropriate," he said. " 

At the same time, you should also take a careful bath. Dr. Bauer recommends using cold water and hypoallergenic soap, such as Cetaphil or Oilatum, when cleaning: "do not scratch the skin. If you are in the shower, avoid spraying water directly onto the injured skin."