Several erythromycin products are on the market to treat a variety of bacterial infections. An antibiotic, it is available by prescription only. This drug comes in pill form, as a liquid and as an eye ointment and can cause several side effects, including allergic reactions.
Allergic reactions to erythromycin are considered uncommon.
Erythromycin may cause skin rashes or hives, which may cause itching. These may appear suddenly anytime during treatment.
In the most severe cases of allergic reaction, patients suffer from anaphylaxis. In these cases, patients may have difficulty breathing, or their face, tongue or throat may swell.
Erythromycin makes people more sensitive to sunlight and ultraviolet light. Avoid exposure to the sun and artificial UV lights while taking erythromycin to prevent sunburn and allergic skin reactions.
What to Do
If you have an allergic reaction to erythromycin, stop taking the drug immediately and call your doctor. Get emergency medical care if you experience any symptoms of anaphylaxis.