I have also suffered from skin problems over the years from the toxicity in my body. I think it would be a very wise idea for you to do some cleansing!
I understand Acne can be a symptom of parasites or a toxic colon. Whether yours is due to parasites or not, doing a Colon Cleanse and a parasite cleanse could really help. I took a product called CleanseSMART which is for cleansing the colon and organs. I also took ParaGONE to kill the parasites and one of the first things I noticed was improved skin. You can buy both of these at your local health food store. There are many natural cleanse supplements on the market besides these too.
Another great way to cleanse is by fasting. It's the natural way to really cleanse yourself of toxins and it's very powerful. A Water Fast for 36 hours would probably be best for just starting out. If you can go 3 or 4 days, it will be tough, but worth it. I really believe the power of fasting could change your health :)