Emergency for itchiness?

Hi mamas, im 24 weeks.pregnant with twins.. my fifth pregnancy.. for the past two-three months ive had severe itching on my inner thighs, both sides as seen in photo theres a rash, and its going up to my belly, the itchiness is so severe that i cant even sleep or relax or enjoy anything, i seen a doctor at a clinic last month who said it was a yeast infection, was giving ointment and it helped until it was all gone, it came back immediately.. i air it out, shower daily, wear dresses and shorts to let air flow as recommended but its still so itchy and it hurts.. i dont have an appointment with an ObGYN until two weeks from today, would it be wasting a doctors time if i go to emergency room? Its midnight, i cant sleep, im itchy, and cant stop scratching.. im busy on week days from 7 to 6 so i never really have time to go to a walk in.