help please

The top left side of my outer labia                (labia majora) is red, swollen/puffy, and itches. I haven't had sex sense June, I don't it could be an std. The last time a shaved was about a week ago, I have already checked for in grown hairs. Can anyone tell me what is going on?  
DISCLAMER THE PIC MAYBE/IS TMI SORRY  
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