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It is always difficult to get rid of a scar like the one you have only with creams. A scar revision surgery, dermabrasion, Microdermabrasion
, Derma roller, Laser
resurfacing, Fractional ablative or non ablative lasers etc are treatments which can be tried after a consultation with dermatologist
A cream containing silicone and vitamin c
, peptides and ceramides(Hexilak silicone gel / Opexa gel) or silicone alone will help but the results won't be drastic. Use a sunscreen daily so that the scar won't become pigmented by sunlight as it can make it look prominent.
Hope this helped