I had clear skin most of my life except for the occassional pimple. Three years ago, while in my mid forties, I started to have acne on my chin. I went to the dermatologist and was diagnosed with perioral dermatitis. I thought maybe it was do to hormonal changes given my age. The dermatologist wanted to put me on antibiotics for an extended period of time in hopes that it would work. I didn't want to take drugs so I decided to try and find a natural treatment on my own--without luck. Then I heard a radio show called, "The Soap Dish"--the host is Deana Kelly, owner of the Naples Soap Co. She said that her establishment sold a natural Sea Salt soap that cleared up skin problems including acne. I tried it, not expecting too much since I'd tried many different things. To my surprise, after three weeks, it cleared up my chin. At first I was using on my entire face, including problem area (chin). I did notice that it was drying out the area around my eyes making me look older, so just now use it on my oily areas (t-zone, forehead, chin).
Also, Deana has made it very affordable. Please let me know if it helps you. I would happy to know that this info helped even just one other person suffering with this problem.
I tried using a teaspoon of table salt, mixed with a little warm water to form a paste. I appled it to the side of my nose (where the crease is) because i have a very itchy patch of skin there that I can't seem to stop scratching! Putting salt on itchy skin works! It breaks the scratch/itch cycle, but eating garlic everyday will help also!