The context of the following conversation is Some children in Tracy's son's class had head lice. Tracy examined every inch of her son's head when she got home.:
Tracy says Can you please help me check my son's head when he gets home from school?.
The friend responds Sure I will.  What happened?  Did he get hurt?.
Tracy responds No, nothing like that.  But some of the kids in his class have head lice!  His teacher just called me and told me about it....Oh, here is his bus now.  Let's go ahead and get ready..
The friend responds Ok.  Let's get it done!  With both of us checking it won't take too long at all..
Tracy responds So we've been checking for about an hour!  I haven't found a single lice, so I think he's ok..
The friend responds I think so too.  I would check every couple of days, though.  It's a lot easier to stop an infestation before they set up a community in his hair and start a society in there..