Advances in the research of drug intralesional injection therapy in keloid

Keloid is characterized by tumor-like invasive growth, high incidence, and low remission rate. The pathogenesis of keloid is still unknown. Keloids can not only affect appearance, but also cause severe itching and pain, which may affect physical and mental health of patients. Previous treatments for keloids include surgery, drugs, lasers and so on. Due to the high recurrence rate of surgical treatment accompanied by keloid enlargement, drug therapy has gradually become a hot topic. Among various methods of administration, intralesional injection is widely accepted as it can promote drug absorption to achieve better results. The progress of several drugs used in intralesional injection therapy for keloid is reviewed in this paper.