So glad to hear you had a great day Christina! I agree with the others... be persistent with the therapist, it usually pays off. Another way might be to get an appointment with someone available and ask the therapist to call in a referral to someone else better suited.
Kirsten, I would do a load with 15 drops of TTO or a 1/4 cup bleach to kill off anything in your diapers. Cold rinse/spin, hot wash and cold rinses is a good routine. I wouldn't change that.