A doctor’s perspective · English edition
Numbing cream and pain during treatment: what should you ask the clinic?
Pain control is part of the plan. Discuss it before the day, not in the chair.
Dr. Seung Woo JangPhysician in Aesthetic Medicine5 min read · Sources includedReviewed by Dr. Kwang Yeon Kim and Dr. Seung Yeon Cha
The short answer
Numbing cream and pain during treatment: what should you ask the clinic?
Ask the clinic how they manage pain for the specific treatment, whether a numbing cream is used, who applies it and how long it stays on. In the American Academy of Dermatology's laser hair removal FAQ, a numbing gel is described as taking about 30 to 60 minutes to work; ask what the timing is for your own treatment, because it changes when you need to arrive. Tell the clinic about any reaction you have had to local anaesthetics and about every medicine you take. Do not apply a numbing product you bought yourself before arriving unless the clinic asked you to: the U.S. FDA warns that some products sold for cosmetic procedures are stronger than over-the-counter limits and can cause serious harm when used heavily or covered.
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Pain is individual, so ask about it.
People feel the same treatment differently, and they arrive with different worries. It is reasonable to say that you are anxious about pain and to ask what the options are. NHS guidance says a practitioner should explain what anaesthetic is needed and how much pain to expect afterwards.
Writing about laser hair removal, the American Academy of Dermatology describes the pulses as often feeling like warm pinpricks or a rubber band snapped against the skin, and says a numbing gel takes about 30 to 60 minutes to work. That is one procedure rather than every laser treatment, so use it as a reason to ask two things: how this treatment is described, and whether the cream is applied at the clinic.
NHSAmerican Academy of DermatologyWhy a cream you bought yourself is not a shortcut.
The U.S. Food and Drug Administration has warned consumers about topical pain relief products marketed for use around cosmetic procedures. Some contain lidocaine above the 4% limit for over-the-counter products. The agency explains that applying them heavily over large areas, on irritated or broken skin, or under plastic wrap increases absorption and can lead to irregular heartbeat, seizures and breathing difficulties.
For that reason, use a numbing product only as the clinic directs. If the clinic asks you to apply something at your hotel, ask for the exact product, the area, the amount and whether to cover it, in writing.
U.S. Food and Drug AdministrationWhat to tell the clinic first.
Tell the clinic about any past reaction to local anaesthetics or other allergies, and about every medicine you take. The American Academy of Dermatology's preparation advice includes telling the dermatologist about isotretinoin and any other medicine, including non-prescription medicines such as aspirin, and about a tendency to get cold sores.
The CDC advises travellers with ongoing conditions to carry a letter listing their conditions, medicines with generic names and doses, and allergies. Bringing that letter to a cosmetic consultation saves time and avoids gaps when language is a barrier.
American Academy of DermatologyCDC Yellow Book 2026Before a treatment you are worried will hurt
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Not unless the clinic tells you to. The FDA warns that some products sold for cosmetic procedures exceed over-the-counter lidocaine limits and can cause serious harm when used heavily or covered.
Official guidanceThe American Academy of Dermatology gives about 30 to 60 minutes for a numbing gel in its laser hair removal FAQ. That is an example from one procedure, so ask the clinic how they time it for yours.
Official guidanceThe Academy describes the pulses as warm pinpricks or a rubber band snapped against the skin. Other laser and light treatments are described separately, and how strong it feels differs from person to person, so ask about the treatment you are booked for.
Official guidanceSome medicines matter for skin treatments. Dermatology guidance asks patients to report every medicine, including non-prescription ones such as aspirin.
Official guidanceBring these with you
Questions to ask at your consultation
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Dr. Seung Woo Jang
Physician in Aesthetic Medicine
A doctor’s perspective on what to understand and ask before choosing care in Korea.
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Checked September 18, 2026. Official sources describe rules and services as published; confirm current details with the provider before you rely on them.
- American Academy of DermatologyLaser hair removal: FAQs A numbing gel takes about 30 to 60 minutes to work; pulses often feel like warm pinpricks or a snapped rubber band; redness and swelling afterwards often look like a mild sunburn; avoid direct sunlight on treated skin and indoor tanning.
- American Academy of DermatologyLaser hair removal: Preparation Tell the dermatologist about isotretinoin and any other medicine, including non-prescription medicines such as aspirin, a tendency to scar, a recent tan, and cold-sore outbreaks; do not tan; use broad-spectrum SPF 30+ water-resistant sunscreen.
- U.S. Food and Drug AdministrationFDA warns consumers to avoid certain topical pain relief products due to potential for dangerous health effects Published 2024-03-26 · Some products sold for use around cosmetic procedures contain lidocaine above the 4% over-the-counter limit; heavy use over large areas, on irritated or broken skin, or under plastic wrap increases absorption and can lead to irregular heartbeat, seizures and breathing difficulties.
- NHSChoosing who will do your cosmetic procedure Published 2023-06-23 · Ask how many procedures they have done, their training, common complications, aftercare and what happens if something goes wrong; the practitioner should explain anaesthetic and expected pain; botulinum toxin injections are prescription-only medicines; for fillers ask the product name and where it came from.
- CDC Yellow Book 2026Travelers with chronic illnesses Prepare 4 to 6 weeks ahead; a clinician letter listing conditions, medicines with generic names and doses, allergies and equipment; original containers in hand luggage; enough for the whole trip plus extra; discuss timing across time zones; possible interactions with medicines prescribed on the trip; know how to seek care at the destination; supplemental insurance.