Need help with burn/scab!?

Hello well last week ( wednesday) I was a stupid twit and decided to put lemon juice on a few acne spots I had, well since i have sensitive skin, wasnt this just plain stupid. Friday morning i woke up and the whole right cheek was bright red and burnt, sucks. so since then i have been putting nothing but cold water and savlon on it and the burn scabbed over about monday. The scab has come off (its thursday now) however the skin looks no more healed and is still hugely red will this subside soon? p.s will vitamin e cream help?! Cheers to anyone who can help!