I had a casual contact with CSW last week. She massaged me and did hand job. There was no contact with her vagina or open mouth to moth contact. Later on I kissed on her back of neck and shoulders for 5 mins. There were no cuts on her body, but there was a tattoo which I also kissed. Later saw a red mark like a pimple on her back. I am having a burning sensation on my lips. I am really worried if I will contact HIV or STD with this act. Please help