Any suggestions?

See Dr. Nuntana at RAM Hospital. She is only there 1 evening a week and you may have to book a month or more in advance, but she's regarded as the best in town, just ask any other doctor. She is a professor at CMU, and she can also be found at Sriphat Hospital 1 or 2 evenings per week.

THanks Clockwise, Sriphat , I guess no appointment but long waits, correct?

I can't confirm about no appointments, but definitely prepare for a long wait.