Cutaneous lupus vulgaris (CLV) is an uncommon type of tuberculosis that causes skin sores that last for a long time and get worse over time. A 14-year-old boy lacking underlying disease presented with painful nodular swelling in his right thigh when he was 5 years old. Improving patient outcomes and preventing complications by early detection and treatment of CLV is the goal of this initiative, which aims to increase healthcare providers' knowledge of the disease. The patient informed of a painful, slowly growing lesion on her face that had persisted for six months. During the examination, a clearly visible plaque with reddening, indentations, and crusting around the center has been noted. Additional tests have been initiated if a medical diagnosis of lupus vulgaris developed. Molecular diagnostics, tuberculin skin testing, and skin biopsies are all part of the diagnosis process. The results of the histopathological analysis are indicative of tuberculosis, showing granulomatous inflammation with caseation necrosis. The diagnosis of CLV has been established by the detection of Mycobacterium tuberculosis DNA using polymerase chain reaction (PCR) analysis. An antitubercular treatment regimen including ethambutol, rifampicin, isoniazid, and pyrazinamide has been initiated. To reduce inflammation and enhance wound healing, systemic corticosteroids and topical antibacterial medicines have been employed as adjunctive therapies. After six months of treatment, the patient's lesion gradually disappeared, a clear sign of an effective result. In endemic areas or in individuals with a history of tuberculosis exposure, this case emphasizes the significance of evaluating CLV in the differential diagnosis of persistent skin lesions. Comprehensive patient care for CLV requires a multidisciplinary approach that includes dermatologists, infectious disease specialists, and pulmonologists. Finally, the clinical appearance, diagnosis, and treatment of CLV are all illuminated by this case report. It highlights the need of identifying and treating this rare yet serious condition early on to improve patient outcomes as well as prevent consequences.