These are called pustules, pyodermas, impetigo
, boils.. furuncles
Often they are caused by bacteria called staphylococci and can be confirmed by sending the white material for culture tests.
doctors often prescribe mupirocin
ointment for application and a good antibiotic like say amoxycillin
to be taken by mouth for almost 10 days.
If the lesions are caused by streptococci and if are not treated for 10 days... there is chance of involving kidneys after 2 weeks to 1 year .. the condition being called PSGN.
I Hope this makes u understand the seriousness with these issues.
Write back for details.