I rubbed Voltaren on my friends back for muscle pain relief, and forgot to wash my hands. I had my period and unfortunately when I went to the toilet, I put a tampon in. Didn't realise I still had Voltaren Emulgel on. After it started to burn, but I thought nothing of it. The next morning I found I could not urinate, due to the burning. Now it's sore and lumpy but not itchy. Just stings and burns when I urinate. Im too embarrassed to see a doctor. What do I do?