Most clinical trials for the topical treatment, such treatment should be safe and effective, because some of the more toxic peptides and fat peptides, such as gramicidin S, polymyxin B has been used in the manufacture of skin creams . These peptides can also be used to conventional antibiotics, and conventional therapies ineffective. The use of powder method of treatment of pulmonary infection is a promising direction of development. Oral medication may be used to treat intestinal infections, nisin ongoing clinical trials of anti-pylori. At least two companies are developing the treatment of parenteral administration.