When performing combined red and blue light treatments, hospitals usually use specialized equipment to emit both red and blue light. Depending on the individual's skin condition and treatment needs, the doctor will adjust the parameters of the equipment so that the red and blue light will be directed to the skin at the appropriate intensity and duration.
Why do you only feel red light during your treatment? It could be because you are sensitive to different wavelengths of light. Red light has a longer wavelength that penetrates deeper into the skin and is not irritating to the skin, so you are more likely to feel it. Blue light, by contrast, has shorter wavelengths and can't penetrate as y into the skin, so you may not feel it as much.
The sensation can vary from person to person. Some people may be able to noticeably feel the stimulation of blue light, while not having a noticeable sensation of red light. This depends on the individual's skin sensitivity and nerve response. So, not everyone will be able to feel both red and blue light at the same time.
It is important to remember that whether or not you are able to visibly feel the blue light, the effectiveness of the treatment is not affected. Combined red and blue light treatments focus on reducing the occurrence of acne by improving the condition of the skin. Red light promotes blood circulation and tissue repair, while blue light is antiseptic and anti-inflammatory. The synergistic effect of the two can effectively improve acne problems.
While undergoing the combined red and blue light treatment, whether you can feel the blue light or not, as long as you follow the doctor's advice to complete the treatment process, I believe that you will gradually see an improvement in your skin condition. If you have any discomfort or questions, please communicate with the relevant hospital professionals and follow their instructions. We wish you a speedy recovery!