Mohs paste (MP) is a topical treatment that can help relieve the symptoms of self-destructive skin lesions caused by malignant tumors. Despite the potential benefits of MP in improving the quality of life of patients, its use in home-based care is limited due to various obstacles. In this study, we developed a 1-mm-thick MP gauze sheet, which allowed us to apply the MP treatment at home to a patient with breast cancer. After three weekly treatments, the patient’s main symptoms, including itchiness, odor caused by exudates, and mobility issues, showed improvement. By using MP as a sheet, we overcame the obstacles associated with its use, such as alterations in the physical properties and the risk of damage to healthy skin tissue. Additionally, we reduced the treatment duration and need for trained personnel. Our findings suggest that the MP treatment can effectively control the symptoms of patients in home-based care, consistent with prior research.