What Causes Severe Itching In The Vagina With Painful Sores?

i suffered from severe vaginal itching. Later on developed into sores.So painful to urinate since the urine touches all the sores .My OB called it herpes. Prescribed me meds for it which works. I got healed now after 5 days of suffering. How do we diagnose and conclude it is herpes? should appearance be the only basis or are there other tests to be done as to arrive to that conclusion? I cannot accept herpes as a diagnosis. I researched hard, and other vaginal infections seems to lead to almost the same physical appearance of sores. I have allergies, could it have triggered the sores? Please help. The truth matters to me. I am married for 16 years and this is the first time it happened to me. BTW, I stopped using contraceptive pills 2 months ago after long years of use. You think it also weakened my immune system or a hormonal imbalance took place. So confused.... help.