Lice treatments fail for many reasons.
Super lice are resistant to chemicals in common lice medicine;
The comb missed some nits and failed to comb them out later;
If you use oil, not enough was applied to suffocate the bugs;
Some rogue bugs were able to survive on personal items like brushes or bedding, and aftercare wasn't
properly performed to prevent them from crawling back on a clean human scalp.
If lice
keep coming back consider calling a professional like LiceDoctors. Our service comes
with a guarantee that the lice won't come back.