I am experiencing vaginal tenderness and vaginal irritation. the following also describes me: skin redness or irritation. what should i do?

Go to a free clinic: I presume you do not have a regular OB/Gyn or other health care provider who can perform a pelvic exam, which you must obtain. A free reproductive health clinic may be available. The cause may be just a yeast infection, but the cause, including bacterial vaginitis or sexually transmitted disease, must be evaluated. Some, if untreated, may lead to sterility and other major complications.