I stubbed my toe under a door a long time ago and there was a scrape that turned into a scar that's now turned into an itchy pea sized bump.

Need to examine: It is not feasible to provide a meaningful opinion without taking additional history, and physical examination. The pea sized lump may be hypertrophic scar/keloid or it may be due to formation of an inclusion cyst. If it is troublesome, you should see your doctor or a podiatrist. For good health - Have a diet rich in fresh vegetables, fruits, whole grains, milk and milk products, nuts, beans, legumes, lentils and small amounts of lean meats. Avoid saturated fats. Drink enough water daily, so that your urine is mostly colorless. Exercise at least 150 minutes/week and increase the intensity of exercise gradually. Do not use tobacco, alcohol, weed or street drugs in any form. Practice safe sex, if you have sex. Get HPV vaccine, if you are under 27 years of age.