Hi i injected my self with an im injection in my buttock. i developed a painful hard lump, now is about 5 in long, no redness or temp?

See doctor: You probably introduced infection along with the injection. What did you inject and why? For the short term you need treatment for the self induced injury and for the long term you may need counseling to straighten out whatever made you do this self destructive thing. Wish you 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.