You can’t do radiotherapy for tumor skin breakage after chemotherapy for squamous lung cancer. Radiotherapy, i.e. radiation therapy, is one of the common methods for treating lung cancer, in which tumor cells are killed by a certain dose of rays. Radiotherapy can be used as adjuvant therapy after surgery and can be used sequentially with chemotherapy. If there is skin breakage after chemotherapy in patients with squamous lung cancer, and the area happens to be in the range of radiation therapy, then radiotherapy is not recommended for the time being. Because even if the skin is normal, local dermatitis-like reaction may occur after radiotherapy; if the patient himself has skin lesions, radiotherapy will make the skin ulceration more serious. Patients with squamous lung cancer should undergo chemotherapy and radiotherapy in a scientific and standardized way under the guidance of doctors to reduce the probability of cancer recurrence or metastasis, and at the same time, they should follow the doctor’s instructions for regular review.