Kris - it would help us to help you if we knew a bit more about YOU - how old are you? where are you in your meno journey e.g. peri or post meno? Have you had a hysterectomy? If you haven't had a hyster, then have you been given some progesterone to take for 12-14 days each month?
To answer your question though, the 25mg patches are a very low dose so problaby not sufficient to help the VA and Bladder problems - so if you aren't using the patch alongside some local oestrogen this may simply not be enough to reduce this burning. Do cut out caffeine and citrus juices but drink plenty of water. Avoid all scented products around your ‘lady bits' and make sure you clean really well after opening your bowels - try to ‘AIR' your fanny as much as possible as well. Multi Gyn Actigel and Sylk could really help the situation.
I gave you the info from the NICE guidelines so you can get clued up about how these symptoms should be treated.
Here is the link on this site that explains about oestrogen patches:
http://www.menopausematters.co.uk/treatafter.phpSuch a low does will take some time to kick in and do it's magic but you should probably be using systemic and local oestrogen to really control things - as explained in the NICE guidelines.
Your GP should be following the NICE guide lines

DG x