Quite a few doctors/dermatologists will tell you that you did this to yourself because you scratched too much, the "itch-scratch cycle". That is absolute rubbish. Bumps can appear in areas that were never scratched before. Prurigo Nodularis will not go away if you stop scratching though scratching will make it worse, eventually causing bleeding and scabs, which will then lead to scars.
Bumps can be discrete
Itching can occur at anytime but usually occurs in the late evening and at night.
It is important to understand the symptoms of yeast infections, fungal infections and parasites as they can mimic many diseases and create allergies. These infections are hard to diagnose and can lead to confusion as to what is really causing your case of itchy bumps. This is another reason why it's important to change your diet because a poor diet is what these infections thrive on. Read the Diet page for more info
Chinese Herbs - This has helped a few people but not many. This only works if you change your diet. Cut out diary and processed foods. Only a qualified Chinese Herbal doctor will tell you this.
Colon Hydrotherapy - This is good to do whilst cleansing. This will help flush out all the toxins and any present parasites.
Chelation therapy - A heavy metal detox, which has been succesful for some. Again, a change of diet is necessary during this process.
Remember to drink lots of water to help flush toxins and to keep your body hydrated.