According to the severity of the disease your doctor may choose to utilize systemic treatments which are usually associated with a higher degree of side effects. He takes tetracycline daily and washes his face morning and night. He has tried several soaps and washing techniques recommended by doctors. But nothing has helped significantly. But, I cannot guarantee this.
Some people persist with acne their whole life.
There are many different treatments for acne, most of which are quite effective. So I believe that he should consult with his dermatologist in evaluating the topical treatments, other antibiotics, or eventually Accutane. The latter is associated with many side effects, but is very effective in the treatment of acne. The need to use it versus the side effects from the medicine have to be evaluated by his dermatologist. I feel bombarded with all the new expensive products from cosmetic lines.