Full-month baby arm up a pustule, if it is caused by BCG injection, general routine disinfection to prevent infection, if it is impetigo need to choose antibiotics for treatment.
1. BCG injection: BCG injection arm pustules generally belong to the normal reaction to drug injection, can heal on its own, pay attention to keep the local skin clean and hygienic, clothes to loose mainly, with iodine routine disinfection, generally do not need special treatment.
2. impetigo: is due to Staphylococcus aureus and other pathogenic bacteria infection, will cause pustules on the arm, accompanied by skin redness, swelling, pain and other symptoms, you can use saline rinse, clean up the secretion, topical mupirocin ointment, erythromycin ointment and other antibiotic treatment.
Full-month baby pus on the arm, need to go to the hospital in time to check, all drugs need to be used under the guidance of the doctor.