I found a small tub of sudocrem in my mum's cupboard a few months ago and thought i'd try it on some of my spots. It worked absolute wonders, it is so calming and soothing to skin and it greatly reduces inflammation and redness. Note: It can only really be used at night for this problem however, as it is white and very obvious when applied.
When I get run-down I get severely dry, cracked, red sore patches at each corner of my mouth. It had gotten to the point where it was so bad and noticeable I didn't want to go out, so I figured i'd give sudocrem a go and the patches were gone in two days.
Also, i've had some infected ingrown toenails, and a few days of applying sudocrem completely clears the infection up for me with no need for antibiotics.
This stuff is amazing, I swear by it. I've just ordered the 400g tub because I simply can't get enough of it. They are not lying when they say antiseptic, it is incredible at fighting infection. It works wonders on so many different problems and it doesn't have a horrible greasy feeling like some creams out there on the market. It also has a lovely faint lavender smell to it.