hi..Thanks for your query
Ideally after the bursting/ drainage of the cysts an oral antibiotic should be started.
You should also do a dressing with with a topical antibiotic
cream like mupirocin or fusidic acid
to prevent any superimposed infection.
Pain /swelling may be controlled by oral anti inflammatory agents like Ibuprofen.
The presence of foul smelling discharge may be an indicator of an infected cyst
.So i think you should consult a dermatologist
for the needful.
Hope this helps.Take care!