Intralesional Botulinum Toxin A for Keloid Treatment: A Review of Efficacy, Safety, and Clinical Applications.

5 In line with previous studies, a study by Elfiky et al 12 that used intralesional BTX-A 5 U/cm 3 injection repeated monthly for four sessions in 30 patients with HTS and keloids showed highly significant differences regarding the epidermal thickness and area of the dermal fibroblasts between the baseline and after treatment.

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