I actually had this happen to me as well. The first month I was constantly breaking out! It felt like I hadnt broken out that bad in years! I do not have acne, but I have also never really broken out at all. Once I started Paleo I was breaking out with a few on my chin, they seemed to never stop! About month three they just went away and now my skin feels better than ever! Stick with it! It will eventually even out.

I don't know why, but the same thing happened to me. I cleared up in 3 weeks or maybe less.

My acne definitely cleared up when I started Paleo. The effect was immediate. I attribute it to taking out the grains in my diet. Before, when I used to eat 200 g of carbs a day (mostly whole wheat bread and oatmeal), I would get at least 2 new pimples a week. Now, all of my friends are telling me how clear my skin looks.
Stress does play a factor (I'm a college student) and now I only get very small pimples maybe once a week but they go away really fast and don't become all red and painful like they were before.
For me, my skin regime is rinse my face in the morning using only water. At night, I use an Olay facial wash with salicylic acid in it (I know, not very Paleo, but it's been working great for me). And when I do get a pimple, I dab a little bit of the Proactiv mask on it. It really does reduce its size!

what!

I always here of acne immediately clearing up from Paleo. It did for me. I still get some, but it's always stress related and doesn't look so bad.

It could be that your body is just reacting because things have changed, I have the same thing. Whenever I change things like eating habits or supplement intake I break out. If you have acne, it means that this is your weak spot in your body and will act up whenever something happens.

This is currently happening to me. I think it's just the toxins being cleared away. You have to remember that your skin is an organ and your impurities come out of your skin, so I think it is the impurities coming out that my body is getting rid of. Mine are on my chin and jaw line too! It seems to be related to the diet considering it's in the same place for all of us! :) I figure it's the impurities in my skin and toxins in my skin coming out. I think it will go away as soon as it's done cleansing itself, but in the meantime I'm going to get a facewash with benzyl peroxide in it like proactive!

I notice acne from two very distinct causes. The first is excess sugar/fructose consumption. The second is excess PUFA consumption, specifically omega 6 but either causes this for me. I actually started breaking out like crazy when I increased my fish oil intake.

My advice is to figure out how much sugar you are eating and how much PUFA you are eating. Reduce both of those as much as possible and see if anything changes.