Thanks for your reply. It definitely was a yeast infection, my doctor has confirmed that.
You both may have yeast infections. This is a common fungal infection in women, but men can get it, too. Yeast infection is not an STD, but can be spread easily through sexual contact. Ask your girlfriend about her symptoms. I think she may have white, thick vaginal discharge accompanied by the itch and irritation. Yeast infection is easily treated and Fugacil cream is commonly used to treat it. To make sure that you don't confuse it with other conditions, see your doctor for diagnosis. You both should get treated at the same time and not have sex until you both are free-symptoms.