Vitamin A acid or tretinoin, available in cream, gel or liquid, can help patients with acne, but may be difficult to tolerate because of its irritating effect. "Like the benzoyl peroxide, acid, vitamin A is an aggressive irritant of the benefits that are not easily discernible. In fact, during the first weeks of therapy, rapid drying, peeling, itching grains might seem worse than ever. The skin is rough, scaly and red and a decidedly unattractive crop of injuries was enough to bloom prolifically time, "said Dr. Frederic Haberman, a dermatologist at the Albert Einstein College of Medicine in New York, on your skin , A dermatologist from the Guide to a lifetime of Beauty and Health. While this may be sufficient reason to discontinue using the drug, Consumer Guide to Prescription Drugs said that should continue with treatment as this is a normal side effect of teitinoin. "The acne may seem worse after several weeks of treatment, but this is because the drying and peeling of the action of acid has discovered hidden ComEd (shins). Two or three months may be necessary, after which improvement can be expected, "said Kurt Butler and Dr. Lynn Rayner of the John A. Burns School of Medicine, University of Hawaii at best for Medicine. As side effects, inform your doctor about blisters, scabs, redness and severe burns, swelling, or marking darkening or lightening the skin. The safe use of this drug in pregnancy has not been established. To reduce irritation, the use of a sunscreen is advisable since tretinoin increases susceptibility to sunburn and possibly skin cancer. Other studies, however, say otherwise. "The problem with tretinoin is that often cause irritation and redness. There is wide acceptance of the patient because of that. What fun is that the chronic use of tretinoin is also said to reduce the incidence of skin cancer so it's like a double-edged. But I would say that the use of tretinoin has decreased drastically over the past 10 years. The type of acne that seems to respond well to that which is mainly with blackheads and whiteheads not U. S. dollars inflammatory acne which is characterized by large grains of red, "said Dr. Peter W. Gould, former president of the New Zealand Dermatológico Society. Tetracycline, an oral antibiotic that is used to treat a wide variety of bacterial infections, also are prescribed for moderate form of acne. This prescription drug inhibits the growth of bacteria that are sometimes responsible for the development of acne lesions. "Tetracycline (an ounce) per day is usually required and must be continued for at least six months to obtain the maximum benefit. Up to 70 percent of patients can be expected to respond with useful reducing inflammation. However, the complete disappearance of injuries can not be expected and improvement has been delayed for about a month after starting treatment, "explained Dr. John Wishart, Department of Dermatology, Auckland Hospital in New Zealand. One drawback is that tetracycline does not work as fast as topical antibiotics and other agents peeling we discussed earlier. Because of this, the patient must continue taking them for long periods and are more likely to experience side effects. "Overall, we move to topical things because many people may need to take oral antibiotics for two years and must be cautious about their side effects. Some people can not take them at all. With tetracycline, which could become sensitive to the sun or suffer from gastric irritation or vaginal candidiasis, "according to Gould. (Next: The side effects of oral antibiotics. ) Beautiful skin, use Lumnaderm, a bleaching cream that removes freckles, unsightly age spots, sun spots, spots and hyperpigmentation. When used as directed, is Lumnaderm balance uneven skin tones and illuminate the skin. For more information, visit http://www. lumnaderm. com.