I usually use a light fake tan on my legs in summer when no longer wearing tights, which works fine. However, of late I have developed some visible veins on my calves (not big knotty varicose veins - just "splodges" of blue/purple). I would like to cover these with leg make up, but don't want to have to do the whole lower leg all the time. Would ordinary concealer work (probably would just rub off?), or do I need something more specialised? Anyone tried anything that worked?