You think it’s lice, so you’re standing in the pharmacy aisle with a bottle of medicated lice shampoo in one hand and a conditioner in the other. Here’s the short version before you spend a dime. A medicated shampoo can kill the crawling bugs, but it won’t clear the eggs glued near the scalp. Conditioner kills nothing at all — its only job is to make a comb slide. And the comb is what actually ends a case. For most Broward families, the winning order is confirm first, treat the live lice if they’re really there, then comb every egg out over the next two weeks.
First, Make Sure It’s Really Lice
A shampoo only helps if there are live lice to kill. Before you treat, part the hair in bright light and look for moving bugs or eggs cemented within a quarter inch of the scalp. The itch alone isn’t proof. Dandruff, dried gel, and hair casts flake off with a fingernail; a real nit is glued on and rides down the shaft as the hair grows. If you can’t find a single live louse, hold off on the medicine.
If the specks brush away easily, you’re probably looking at the difference between lice and everyday dandruff rather than an infestation. Treating a clear scalp just puts an insecticide on your kid for nothing.
What Shampoo, Conditioner, and a Comb Each Do
Three tools, three jobs. Lay them side by side and the plan gets obvious — each one covers a gap the others leave open.
| Method | Kills live lice? | Clears the eggs? | Safe to repeat on kids? | Reliable on its own? |
|---|---|---|---|---|
| Medicated lice shampoo | Often, though some lice resist it | No — eggs survive | Age limits; not for frequent reuse | No |
| Conditioner + fine-tooth comb | No — conditioner doesn’t kill | Yes, if every egg is combed out | Yes — non-toxic, repeatable | Only with patient, repeated combing |
| Professional comb-out | Yes — removed by hand | Yes — worked section by section | Yes — non-toxic options | Most reliable, usually one visit |
Killing the Live Lice Is the Shampoo’s Strength
A medicated shampoo is built to do one thing: kill live lice on contact. Used exactly as the box says, it knocks down most crawling bugs in a single application. That part is real, and it’s why the shampoo has a place at all. The catch is what it leaves behind.
Even a perfect application usually misses the eggs, which is what a drugstore pediculicide leaves behind on the hair shaft. Those nits hatch a few days later and the case restarts. Resistance is the other problem — in many areas lice have grown tougher against over-the-counter formulas, so the shampoo thins the herd instead of ending the infestation.
Clearing the Eggs Is the Comb’s Job
This is the step people skip, and it’s the one that ends a case. No shampoo dissolves the glue that holds eggs to the hair, so the eggs have to come off mechanically, one pass at a time. That’s where conditioner earns its place.
Health authorities describe the wet-combing method plainly: apply lots of ordinary conditioner and comb from the roots to the ends with a fine-toothed detection comb across the whole head. The conditioner doesn’t treat anything. It just makes the strands slippery so the comb can travel and trap lice and eggs instead of skating over them.
The comb itself matters more than parents expect. Metal combs with very fine teeth work better than plastic nit combs, and you should comb again 7 to 10 days later to catch anything that hatched after the first pass. Skip that second and third pass and the eggs you missed become next week’s problem.
And not every comb is up to it. A flimsy plastic one drags without stripping the shaft clean, which is why the wrong nit comb quietly leaves eggs behind. A sturdy metal comb with tight teeth is the tool that does the work.
Don’t Reach for Conditioner Before the Medicine
Order matters. This is where the same bottle turns from helper to saboteur. Condition the hair before a medicated shampoo and you coat every strand in a film the medicine can’t get through. The label on most lice treatments says it outright: don’t use a cream rinse or a two-in-one before treating, and don’t rewash the hair for a day or two afterward. Save the conditioner for the comb-out, not the treatment. A drugstore lice shampoo and conditioner grabbed off the same shelf can absolutely work — but only if you use them in the right order and at the right step.
Choose the Approach That Fits Your Case
Find your situation and the next step gets simple.
- Light case, short hair, patient parent: the conditioner-and-comb routine can clear it with no medicine at all, as long as you comb every few days for two weeks.
- Confirmed live lice on thicker hair: a medicated shampoo to knock down the crawling bugs, then the conditioner-and-comb routine to strip the eggs.
- Long or curly hair, a second failed round, or several kids at once: a professional comb-out is the faster, more reliable route.
When a Broward Pro Is the Faster Route
Some cases are worth handing off. Long, thick, or curly hair hides eggs, and a tired parent combing at 9 p.m. misses the ones that matter most.
The timing raises the stakes right now. Broward County Public Schools opens the 2026/27 year on Monday, August 10, so a case caught this week is the difference between a clean first day and a note home in September.
Head lice aren’t a health emergency. Florida’s health department notes that lice spread through the head-to-head contact common at school and can’t hop or fly, which is why one confirmed case usually means checking everyone in the house at once, calmly.
The families who come to us after a failed drugstore round almost always tell the same story: the shampoo went on, the comb-out never happened, and the eggs hatched on schedule.
A professional lice treatment works the hair in sections with a non-toxic process and a follow-up check, so nothing viable gets left behind.
If you’d rather have it done once, book a Broward lice check and comb-out and skip the trial and error.
The Honest Tradeoff
Handing it to a pro isn’t always necessary, and pretending otherwise would be a sales pitch. A light case on short, straight hair is genuinely do-it-yourself: the conditioner-and-comb routine, done faithfully every three or four days for two weeks, clears it without a drop of medicine. The tradeoff is your time and your consistency. Miss a session or two and the eggs win. If you know you’ll stay on it, the home method works. If your week is already full, a pro buys back the hours.
Frequently Asked Questions About Lice Shampoo and Combing
Can I just use lice shampoo and skip the comb?
Not reliably. The shampoo kills live lice but leaves most eggs cemented to the hair, and those hatch within about a week to restart the case. Combing the eggs out is the step that finishes treatment, whether you do it at home or have it done for you.
Does conditioner kill lice?
No. Conditioner has no effect on lice or eggs. Its only role is to coat wet hair so a fine-toothed comb can glide and trap the bugs and nits. That’s useful during the comb-out, and useless as a treatment on its own.
Why shouldn’t I condition before applying lice shampoo?
Because conditioner leaves a film that blocks the medicine from reaching the lice. Most treatment labels tell you to skip cream rinse and two-in-one products before treating, and to avoid rewashing for a day or two. Use conditioner later, for combing, not before the medicated step.
One Round That Actually Works
Lice come back when the eggs get left behind, not because the shampoo was the wrong brand. Get the order right — confirm, kill what’s crawling, then comb until nothing viable is left.
When you want it handled in one sitting, book a Broward lice check and comb-out and start the school year clear.