Well pharmaceuticals may not help, but neither do natural remedies as far as I have ever experienced...
I have spent the last 10 years using natural remedies, herbs, vitamins, naturopathic doctors, etc, etc and my problems have only become worse.
At least someone taking Antibiotics has a chance of allowing their skin to clear. Many people have cleared their skin with Antibiotics and their Acne has never returned. To give this person a guilt-trip is rather unwarranted in my opinion. They have worked for many many people.
Personally I have had better luck in my life with pharmaceuticals that I have "natural medicine".
I have screwed with natural medicine for years to try and clear my Acne and all I have to show for it is massively Acne scarred skin.
If I could go back and take pharmaceuticals to clear my skin I would do it in a second.
P.S. - My doctor put me bactrum for gut bacteria and my face is now clear of acne.