Hello.thanks for the query
Boils is caused by a bacterial infection.For the treatment :
1)Hot compresses may help drain the swollen areas.You can clean with Normal Saline 2-3 times a day to keep the area clean.
2)Inscision and Drainage
of the pus may be done by qualified personnel. Do not touch it or attempt to drain it yourself.This leads o further infection even after a sense of relief due to drainage of the pus.
3)Antibiotic creams applied to the skin like mupirocin
twice daily for 10 days.
4) Oral anti inflammatory medicines like Ibuprofen/ Paracetamol
may help relieve the pain and reduce the inflammatory process.
4) You might require oral anti biotic therapy to reduce the infection .
Several creams help in fading post inflammatory hyperpigmentation
You may start using a cream having Kojic acid
twice daily on spot of the scar.
Hope this is helpful