Medication guide · Aesthetics

Topical Numbing Cream Before Laser and Injections

Short answer

Numbing creams such as lidocaine, or compounded blends of benzocaine, lidocaine and tetracaine (BLT), are applied before laser, PRP or filler to dull pain. Clinics put them on in the office for a set time and wipe them off, because strong creams spread over large areas, left on too long or covered with plastic can be absorbed enough to cause seizures and dangerous heart rhythms, as the FDA warns.

By the Ultimate Male team · Updated October 8, 2026

Man relaxing in a treatment chair with cream on his cheek

What numbing creams are used before cosmetic procedures

Topical numbing creams are local anesthetics that soak into the outer skin and block pain signals from nerve endings for a while. Before aesthetic treatments, two kinds come up most:

  • Lidocaine creams. Lidocaine is the most familiar topical anesthetic. Over-the-counter versions are limited in strength, and stronger lidocaine products are available through clinicians.
  • Compounded BLT. A mix of benzocaine, lidocaine and tetracaine made by a compounding pharmacy. In a survey of cosmetic dermatologists, the most popular topical anesthetic was benzocaine 20%, lidocaine 6% and tetracaine 4%, used most often before fractional laser treatments.

Their FDA status differs. As of October 2026, over-the-counter lidocaine numbing products are FDA-regulated with a strength cap, and the agency tells consumers to avoid OTC products above 4% lidocaine. Stronger lidocaine creams are available only through clinicians. BLT, like every compounded medicine, is not FDA-approved, so its strength and quality depend on the pharmacy that makes it.

Where numbing fits: PicoSure Pro, PRP and filler

How much numbing helps depends on the procedure. Laser treatments for pigment, such as PicoSure Pro for sun spots, deliver rapid pulses across an area of skin, so surface numbing is a common comfort step. PRP involves several small injections, and Ultimate Male’s PRP injections are done with numbing as part of the visit.

Fillers are a partial exception. The FDA’s dermal filler page notes that some fillers contain lidocaine, so the product numbs the tissue as it goes in, and the FDA lists lidocaine allergy as a reason to discuss options first. A topical cream may still be used for the needle’s first entry in sensitive spots such as the lips.

Why the cream is applied in clinic for a set time

Numbing cream is applied by the clinic, left on for a timed period and then removed, because absorption is what makes it both effective and risky. The more cream, the larger the area, the longer it stays on and the more the skin is broken, warmed or covered, the more anesthetic enters the bloodstream.

A review of topical anesthetic safety advises that compounded formulations be used with caution, in medical settings only, on limited body areas and without occlusion (covering the skin with plastic). That is the logic behind in-office application:

Safe practice Why it matters
Staff apply a measured amount Prevents the thick layers people tend to use at home
Limited to the treatment area Keeps total absorbed dose down
Timed, then wiped off Stops absorption before treatment starts
No plastic wrap or heat Wrapping and warmth increase absorption
Skin checked first Broken or irritated skin absorbs far more

The FDA warnings: seizures and heart rhythm problems

The FDA has warned repeatedly about strong numbing products used around cosmetic procedures. In a March 26, 2024 warning, it named products sold for use before microdermabrasion, laser hair removal, tattooing and piercing that contained more lidocaine than over-the-counter rules allow. Used in ways that increase absorption, they can cause irregular heartbeat, seizures and breathing difficulties, and they may interact with other medicines or supplements.

The FDA’s advice for consumers is direct:

  1. Do not use over-the-counter numbing products with more than 4% lidocaine.
  2. Do not apply them heavily over large areas or on irritated or broken skin.
  3. Do not cover treated skin with plastic wrap or other dressings.

If someone develops ringing in the ears, a metallic taste, confusion, twitching, a racing or irregular heartbeat, trouble breathing or a seizure after using a numbing cream, call 911. These signs of anesthetic toxicity need emergency care, not a call back later.

Side effects, interactions and who should be careful

Most reactions are mild: redness, paleness, itching or a short burning feeling where the cream sat. Allergic reactions happen and are more common with the ester-type anesthetics, benzocaine and tetracaine, than with lidocaine. Benzocaine can also, rarely, cause methemoglobinemia, a blood problem that limits oxygen delivery and shows up as gray or blue lips and shortness of breath.

Tell your provider before numbing if you:

  • have had a reaction to a dental or local anesthetic;
  • take heart rhythm medicines or other drugs that act like local anesthetics;
  • have significant liver or heart disease, which can slow clearance or raise sensitivity;
  • have eczema, a rash or a fresh wound in the area;
  • are planning treatment over a large area in one session.

Monitoring during a supervised application is straightforward: the time is tracked, the skin is checked when the cream comes off, and you are asked how you feel before treatment begins.

What numbing cream can and cannot do

Topical numbing works on the surface. It takes the sharp edge off a needle entering the skin or the snap of a laser pulse, but it does not reach deeper tissue, so you may still feel pressure, warmth or a dull ache during injections or longer laser passes. That is normal and not a sign the cream failed.

It also is not the only comfort tool. Cooling the skin, a filler that already contains lidocaine, short breaks during treatment and a steady, unhurried technique all help. For a small area, some men skip cream entirely, which avoids the wait and any reaction to it. Ask what your options are rather than assuming more numbing is better.

How Ultimate Male handles comfort during treatments

Ultimate Male offers aesthetics for men including PicoSure Pro, fillers and wrinkle relaxers, and the provider or nurse decides whether numbing is needed and which form to use for your skin, the area and the treatment. Share your full medication and allergy list at the visit. If you are preparing for injections, our guide on how to prepare for Botox or filler covers the rest, and our page on hyaluronidase explains what happens if HA filler ever needs to be dissolved.

questions

Common questions.

Topical Numbing Cream Before Laser and Injections

Still unsure? Take the free assessment

Can I put numbing cream on at home before my appointment?
Only if your provider tells you to and gives you the product and the timing. Unsupervised home use, especially heavy layers or wrapping the skin, is exactly the pattern the FDA warns against.
Does filler already contain numbing medicine?
Many do. The FDA notes that some dermal fillers contain lidocaine, which numbs the area as the filler goes in, so a separate cream may be optional for some areas.
How will I feel after the cream is removed?
The skin stays numb for a while after removal, so avoid hot drinks on numbed lips and protect the area from scratches. Normal feeling should return as the medicine wears off.

Sources

  1. FDA Warns Consumers to Avoid Certain Topical Pain Relief Products Due to Potential for Dangerous Health Effects · U.S. Food and Drug Administration
  2. Topical Anesthetic Use in Cosmetic Dermatology · Journal of Drugs in Dermatology (PubMed)
  3. Adverse effects of topical anesthetics for dermatologic procedures · Expert Opinion on Drug Safety (PubMed)
  4. Compounding and the FDA: Questions and Answers · U.S. Food and Drug Administration
  5. Dermal Fillers (Soft Tissue Fillers) · U.S. Food and Drug Administration

This page is general education, not medical advice. A licensed clinician must review your symptoms, history and labs before any treatment decision. For chest pain, trouble breathing, signs of stroke or an erection lasting over four hours, call 911.

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