I have chicken pox scars on my face, on my nose and forehead - they look similar to a few acne scars I have, the 'ice-pick' kind if that makes sense.
I though maybe *maybe* Bio Oil would help, but I used it for about 6 months faithfully day and night and it didn't make any difference to scars! Grrr lol. BUT it DID even out my skintone and fade red marks really well (and I'm SUPER pale, as in white lol, so ANY mark shows up crazily), so use it for that if you need it.
I also found it broke me out after using it for a few months. I found a basically identical product which is called Rosken Skin Repair Bio Serum, and it's less than half the price of Bio Oil for roughly the same amount (50ml vs Bio Oil's 60ml I think).
The Rosken even has the ingredient touted by Bio Oil as breakthrough or exclusive ingredient or something, Purcellin Oil. As far as I can tell the ingredients are basically the same. I can post the ingred for both if anyone wants them.
I prefer the Rosken as it doesn't break me out, reduces uneven skintone just like the Bio Oil does, and it feels a lot silkier on the skin.
I recommend with either of these products, or any oil, that you apply on a damp face to seal the moisture in.
Hope that helped!