Sore vagina! please help ASAP!

Patient: Hi, im 16 and never had sex, but in the last couple of days I’ve noticed my vagina feeling very sore and bruised. Yesterday it was very tender to touch and tonight I noticed the left side is rather swollen but generally it feels a bit better than yesterday. It is slightly redder than usual, no abnoraml smell or discharge though. Please tell me what I can do to make it better, I cant go to a doc as Im leaving on holiday in a couple of days. Thanks!

Doctor: