DH bought be a beautiful necklace for Christmas, a heart shape but the way it sits, it scratches my skin. I don't think it can be smoothed as it's actually the curve of the necklace - the point at the bottom of the heart - which scratches (I think it's made of silver clay) - is there anything I could put on it to stop it, I do end up a bit red and blotchy if I wear it but I love it. I'm not allergic to it's literally too sharp! Thanks