Chris Schach

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* Erythromycin is an antibiotic similar to penicillin prescribed by for a variety skin conditions.

Erythromycin is an antibiotic prescribed by for a variety of skin conditions such as acne, Rosacea, Erythrasma, Pityriasis lichenoides, and infections like impetigo. Erythromycin is particularly useful for those allergic to penicillin. Erythromycin has anti-inflammatory properties that help reduce redness in lesions, in addition to killing bacteria. It can also be active against Staphylococcus aureus, Streptococcus pyogenes, corynebacteria and clostridia as Neisseria gonorrhoeae. It is also effective for mycoplasma infections, syphilis and chlamydia.


You can get erythromycin in an ointment, gel, lotion or pledget. The dosage of erythromycin varies with the type used, but it is typically prescribed as 250 - 500 mg twice a day. Erythromycin skin products are for external use only. Do not take by mouth. Wait 30 minutes after shaving or washing before applying.

Side Effects

Erythromycin can cause stomach upset, nausea, vomiting, diarrhea, and loss of appetite. It may also result in dry, scaly skin; skin irritation, burning, or itching; and redness or swelling. Rare side effects may also include liver reactions, rashes, hearing loss, and irregular heartbeat. Notify your doctor immediately if you experience severe side effects.

Note of Precaution

* Erythromycin can be used in pregnant women.

* Do not use corticosteroid skin products at the same time as this medicine as they can mask problems.

* Erythromycin should not be taken with terfenadine, astemisole, or Cisapride because it could result in irregular heartbeat.

* Notify your doctor if you are taking any other medications, as Erythromycin can have adverse effects if taken at the same time as several other medications.
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