When it comes Erythromycin, obviously this is one of the most prescribed acne meds today, and in some respects it’s even better then Tetracycline and Accutane. Some people even say that it’s also very effective for how to get rid of dry skin. When it comes to the dosage that is given usually it’s about 300 mg; it depends on how severe your acne is and your weight and age. Erythromycin is usually taken after food and even pregnant women can take it because it’s very safe. However, before taking this acne antibiotic you should discus all your health problems with your doctor because having some helth issues such as diabetes or liver disease will not allow you to take Erythromycin. The reason why this acne antibiotic is so effective is that it stops the growth of bacteria that causes acne and especially effective for cystic acne. Usually after taking it for about a month you can see the results that are very significant and obvious.