I have been using coconut oil internally and on my hair and skin, and had seen OPing mentioned a lot, and so decided to give it a go. I didn't have a specific aim, just wanted to see if it works.
I've been doing it for over a week. First thing in the morning on an empty stomach, and before bed, using EVCO.

So far I've noticed

*Nose is much clearer and I can breathe better
*Teeth look whiter, feel stronger, less sensetive, gums are less raw and sore. I had bulimia for many years, and this is helping to heal the damage I've done to my mouth with acid erosion.
*Dark circles are fading, and this is something that has really affected my confidence as I always look so tired
*Taste and smell is improving
*I feel more alert and have much more energy
*Feel more calm
*My thinking is so much clearer! I can't quite get over it. I feel smarter and my memory has improved so much
*Skin is really soft, especially on my feet and elbows
*Digestion has improved and cravings have eased up
*My skin looks better in general. More of a glow and Acne scarring is fading
*I feel happier. I've had a lot of trauma and emotional problems since childhood, and been on a lot of toxic medication. I feel I'm doing something nice for my body.

I did experience something like a flu and really bad headaches, but I kept going because the worse it got, the better my other symptoms got.

With the night time OPing, I made the mistake of doing it on a full stomach and had the nausea from hell. I almost passed out at one point! So I much more careful about leaving it for a while after eating, usually 3 or 4 hours.

I really wasn't expecting much and I can see the difference already, so it's not all in my head. It's also nice to do something that is so natural after spending years on Antibiotics and strong psych medication.