1, radioactive oral mucositis usually appears 1 to 2 weeks after radiation therapy, often accompanied by taste changes, dry mouth and saliva becomes sticky, most patients 2 weeks after radiation therapy, taste changes and mucosal congestion in the irradiated area significantly increased, accompanied by pain, followed by the appearance of dotted or small pseudomembranes, increased pain and limited eating. Treatment is mainly symptomatic, and to maintain oral hygiene; mouthwash, anti-inflammatory sprays, gargles containing anesthetics, and preparations to promote mucosal healing can be used, and antibiotics can be used for severe cases.
2.Radioactive skin reaction: skin pigmentation, fibrosis, peeling, ulceration, etc. in the irradiated area, may be accompanied by itching and pain. If necessary, drug treatment.
3.Radiation dry mouth Most patients have different degrees of saliva reduction after radiotherapy for nasopharyngeal cancer, resulting in dry mouth. The main reason for oral dryness is that 3 pairs of salivary glands (parotid gland, subnasal gland and sublingual gland) can be included in the radiation treatment field, thus being irradiated to different degrees, resulting in salivary gland atrophy, which reduces the saliva volume and causes oral dryness. The degree of salivary gland damage and salivary volume reduction depends on the time, dose and type of radiation treatment.
4.Radiation damage to the nervous system manifests as headache, nausea and vomiting, drowsiness, altered mental consciousness, etc.
5.Radioactive osteonecrosis of the jaw manifests as local intermittent pain or deep persistent severe pain.
6.Radioactive lung injury manifested as chest tightness and shortness of breath, low fever, cough, etc.
7, systemic reactions decreased white blood cells, decreased appetite, weakness, etc.
At present, with the development of three-dimensional conformal intensity modulated radiation therapy technology, serious radiation treatment reactions are very rare, and most patients can successfully complete the course of radiation therapy.