Can Vitamin A (Retinol) Be Used on a New Chicken Pox Scar?

Good day! My daughter had chicken pox about 4 weeks ago, and was left with some shallow scars on my face. Even if the scans have fallen for more than 2 weeks I have continued to apply tanno hermal lotion ( has you know, contains tannin and zinc). I have the feeling that it still improving and that it helps?? Please advise on that. Also I've heard that for very shallow scars retinol could help. If so how long should I wait. Thank you in advance!

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