VA can present itself in many different ways but a flora imbalance can cause a lot of discomfort generally. Wearing tight trousers, getting over hot around the intimate area, not drinking enough water etc can all cause irritation. Antibiotics can actually make things worse if there isn't an infection present anyway - urine samples should always go to the lab for full testing. Sadly these types of symptoms are very common. You are finding strategies to help manage the situation when it arises - perhaps see if there is anything that triggers this problem so you can avoid it. You may well benefit from local oestrogen but it is a range of strategies that help to keep us comfortable around our ‘lady bits'. I've been having problems for 20 years now - I really empathise. DG x