The safety and efficacy of the use of heterologous rich platelet plasma (hRPP) from the mother is shown in a case of AB-A burn by hot water. This is a 3-year-old patient who was surgically operated in another center, without positive results and deepening, so recovery was complicated. The objective was to regenerate the affected tissue and to induce in an assisted way the formation of epithelial tissue using hRPP from the patient's mother. We apply the closed healing technique in 2 outpatient sessions by applying hRPP without the need for additional procedures. There were no complications, signs of rejection or infections, and their recovery was obtained in 14 days.