Agree wholheartedly with Tom24!
I suffered acne on my face as a teenager but right up until my 30s I had it in varying degrees of severity on my back.
For years I was using everything from the basic medicated soaps to countless lotions. All had varying degrees of effectiveness but nothing provided the long term solution. In the end, my army doctor sent me off to a dermatologist and he put me straight onto Roaccutane.
The side effects can be a bit unpleasant ie:
dry nasal passages (I needed a D9 to get up there on some days

) In fact drying of all mucus membranes occurs with the medication.
Thinning and peeling of the skin to the point that any sport involving contact will normally result in minor scratches needing to be dressed.
A very increased sensitivity to UV will be an issue which in Australia is a real problem so use plenty of sunblock and keep covered.
The drying effect will also have a minor effect on the joints causing some stiffness there also.
End result for me though is that after suffering acne for over 20 years, it is totally gone. From memory the treatment program took about 6 months.
I can't believe an 8 month wait for a Dermatologist