When Skin is Lacerated to Fatty Tissue on Face What is the Right Treatment of the Wound?

My son 3yrs was lacerated by finger nails to fatty tissue on cheek bone. 2 scars 1.5 cm long x 2mm wide 0.5cm by 3mm. Wound closed within 48hrs. Applied vaseline to the scab twice a day,scab came off after 2.5/3 days. We then used Mederma and silicon patches(daytime only). The wounds are bright red and colour has not changed in 6wks, they appear smooth/flat. Could vaseline interfere with healing process? Does this mean it is a permanent scar? will size be whole red area ie size of lacerations?

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