I have a multi-entry visa valid until November 14, 2015. I am a private nurse and used it in the middle of last May in Germany for the health of my patient. We stayed there for one month and went back to our home country.
I want to use it again in August in Portugal as a tourist and to visit my sister there. I will not go there with my employer but there's a remark on my visa that I should be accompanied by my employer.
Can I still use my current visa or do I need to apply again for a new visa?