<s>[INST] my son 3 mths old had his umbilical granuloma treated with a copper sulphate application, with the cuso4 swb in place fr 2 days.on removal of the dressing i saw 4-5 pustular eruptions on the skin the swab was in contact with.why did that occur and what should i do abt it? [/INST] Hi.normally there should not be any pustular eruptions occurring there after this copper sulfate treatment. Pustules mean infection and off late a bug called MRSA is on the rise in the community. I suggest doing a swab for Grams stain and culture and start using Mupirocin antibiotic as topical application. But all this requires a doctors prescription and I suggest you consult your pediatrician regarding this. Regards -  </s>