If you look at conflict between the characters in your dream you will be able to home in on the difficulty the dream is attempting to resolve.
The Dream: My daughter is going for a treatment of antibiotics at a new age facility. I get preachy and tell her that if she needs antibiotics she should see a doctor, not go to the sort of squiggly-headed pseudo-scientific place she's chosen. I point out that if she's taking antibiotics unnecessarily they might not work when she really needs them.
I become aware that she has made this choice because she thinks she can sneak in without paying, whereas if she went to a doctor she would have to come up with a co-pay. I'm surprised she would do such a thing.
Despite my reservations about the place, I go to the facility myself, into a dressing room that is a converted parking lot. A male attendant scolds me for not getting into the queue for one of the two private, curtained dressing rooms. I hadn't been aware of the queue, but when I realize there are only two private changing rooms I start to pull off my clothes where I am, thinking it would be ridiculous to wait and who cares? The rough, tough security guard is embarrassed and looks away awkwardly.
I undergo some sort of treatment at this spa, pay for it, and leave. Later a bill comes for my daughter's treatment. It's over $600.00. She won't like it, but she can afford to pay. I know she'll be upset about the amount and surprised to learn that she didn't get away with anything after all.
Interpretation: My inner child is stubbornly trying to get away with something. From my “mature” point of view this child part of me ignores the facts and chooses an ineffective treatment for my problem. And yet the older, wiser, and objecting dream ego chooses to go to the same place for treatment. Through the dream I become aware that I don't want to pay the price my cure requires. It's as if the dream wants to show me that there are ways to grow even in situations that aren't ideal.
The healing process begins as I expose my vulnerability (undress) without discomfort. When told I must wait my turn for a private “changing” room I change publicly, without shame. This takes place in a partially converted parking lot, and the part of me that protects my security looks away. These two things signal that the “change” is to a “parked” and closely guarded part of myself.
Finally I accept that there is a high price for my child's attempt to freeload, but I know that my child, now grown, can afford it. I won't like it, but it's a price I am able to pay. It's as if one part of my psyche is dragging another along into a more mature awareness or resolution.