With the seemingly mysterious and advanced technology such as “laser” and “low temperature plasma”, coupled with the propaganda of “one-time cure”, many nasal patients seem to have found a savior. However, the truth is cruel, after a short period of symptom improvement, many of these patients suffer a huge price – dry nose, nasal congestion, and even headaches, increased nasal mucus, nasal reflux. Is laser, low-temperature plasma technology a boon for people with nasal disease, or is it dragging them deeper into the abyss? In order to solve this mystery, it is necessary to understand the treatment principle of these technologies. Laser treatment uses the photothermal action of the excited radiation light on the tissue with high treatment temperature (more than 150°C) to ablate the nasal mucosa by destroying the epithelial layer. Low-temperature plasma therapy uses electromagnetic waves with high frequency to ablate tissue at low temperature (around 40-70°C), forming a highly aggregated plasma zone around the electrode through conductive media, which crushes the molecular chains of organic molecules in the tissue, thus separating the molecules and molecules, reducing the volume of the tissue and causing the tissue to ablate at a fixed point, commonly used to ablate by destroying the subepithelial layer of the nasal mucosa, with the advantage of heat The advantage is that there is less thermal penetration. It can be seen that all the above treatments are aimed at the nasal mucosa. The physiological function of the nasal cavity is closely related to the function of the nasal mucosa. Not only does the mucosal surface have an important ciliary transport system responsible for removing secretions and dust particles from outside, but there are also glands in the mucosa that secrete glandular fluid to keep the nasal cavity moist, and there are various other receptors that respond to whether the nasal cavity is clear and whether the temperature is appropriate. Laser and low-temperature plasma treatment will ablate the nasal mucosa and shrink the turbinates, while inevitably affecting the function of the nasal mucosa to varying degrees, so the result may be the opposite. Many people think that low temperature plasma does not work on the epithelial layer of the nasal mucosa, but only on the subepithelial layer, so it is much less traumatic, without knowing that the mucosa is a whole, and the foundation of the mucosa is gone, what can be said about non-invasive and can protect the function of the mucosa? At present, laser and low-temperature plasma technology is commonly used in the treatment of inferior turbinate hypertrophy due to rhinitis, through the ablation of the inferior turbinate to improve the ventilation of the nasal cavity, but there are two main types of inferior turbinate hypertrophy due to rhinitis, one is bony hypertrophy of the inferior turbinate based on bone hyperplasia, and the other is hypertrophy of the inferior turbinate based on mucosal hyperplasia. For bony hypertrophy of the inferior turbinate is absolutely not suitable for treatment with laser and low-temperature plasma, which is the reason why many patients not only have no effect after treatment with this technology, but also have corresponding discomfort symptoms. For some patients with mucosal hyperplasia-based inferior turbinate hypertrophy, generally after a period of regular treatment with hormones and other drugs for nasal can be cured, do not rashly accept this destructive treatment of the mucosa. Of course, laser and low-temperature plasma are not useless in the treatment of nasal diseases, but the indications should be grasped with special caution. For patients with severe hypertrophy of the mucosa of the inferior turbinate and who do not recover from regular medication, ablation of the hypertrophied mucosa of the posterior segment of the inferior turbinate (which should not be excessive) using the above techniques can be effective. For allergic rhinitis, the above techniques can also be used to block the anterior septal nerve, which is effective in reducing the sensitivity of the nerve in the short term and can improve the symptoms of allergic rhinitis to a certain extent, but it does not achieve a radical cure. In addition, laser and low-temperature plasma are more effective in the treatment of rhinorrhea, and the bleeding point can be closed with the assistance of nasal endoscopy. For patients treated with laser and low-temperature plasma, the nasal cavity should be rinsed with saline after the procedure and oil drops should be used to keep the nasal cavity clean and moist and to promote the recovery of the mucosa. For patients who have undergone laser and low-temperature plasma treatment recklessly and have symptoms such as nasal congestion, dry nose, nasal runny nose and nasal bleeding, it is necessary to use saline to rinse the nasal cavity for a long time, as well as to use some drugs that promote the recovery of mucosal function and thinning of mucus, such as standard myrtle oil (Genoton) and other drugs, in order to restore the function of the nasal mucosa. But the key is that nasal patients should be cautious about laser and low-temperature plasma treatment, and it is best to consult with a rhinologist at a regular medical institution before choosing this technology for treatment.