Lice! Help?!

I’ve treated my two older children. Ran a lice comb through my youngest and didn’t find anything. My husband and I are going to treat each other tomorrow. But my daughter, ivebeen going through her hair for 4 hours. I’m only halfway through it, and the Sodexo been through, I’m STILL pulling them out of!

HELP! We’re also in quarantine because my youngest had a positive Covid test, and myself. So I’m having to depend on what my family can go get.