Orajel cold sore products work by numbing the area around your cold sore to reduce pain, but they won’t speed up healing on their own. Using them correctly means applying at the right time, preparing the skin first, and choosing the right product format for your situation. Here’s how to get the most out of them.
What Orajel Cold Sore Products Actually Do
The main active ingredient in Orajel cold sore products is benzocaine at 20%, a topical anesthetic that deadens nerve endings in the skin. This numbs the burning, stinging, and throbbing that makes cold sores so miserable, but it doesn’t have antiviral properties. Over-the-counter creams containing benzocaine can ease discomfort, but they won’t make a cold sore heal any faster.
Orajel’s Moisturelock formula adds several other ingredients beyond benzocaine. Camphor (3%) and menthol (1%) provide additional pain relief through a cooling sensation. Allantoin, dimethicone, and white petrolatum act as skin protectants that lock in moisture, soften scabs, and reduce cracking and dryness as the sore heals. So while benzocaine handles the pain, the rest of the formula addresses the uncomfortable later stages when cold sores dry out and split open.
How to Apply the Moisturelock Cream
Before applying any cold sore product, wash your hands thoroughly with soap and water. Clean the area around the sore and make sure it’s dry. Remove any lip balm, lipstick, lotion, or other products from the area first, as these can create a barrier that prevents the medication from absorbing properly.
Apply a thin layer of the cream directly over the cold sore and the skin immediately surrounding it. Use a clean fingertip or a cotton swab rather than dipping your finger back into the tube, since cold sores are caused by a highly contagious virus. After application, wash your hands again to avoid spreading the virus to your eyes or other parts of your body. Leave the treated area uncovered; don’t put a bandage over it.
You can reapply as needed throughout the day when pain returns. The numbing effect of benzocaine is temporary, typically lasting anywhere from 30 minutes to an hour depending on how much you applied and whether eating or drinking washes it away.
How to Use the Touch-Free Single Dose
Orajel also makes a single-dose applicator designed so your fingers never touch the sore directly. This reduces the risk of spreading the virus to your hands or contaminating the product. The process has a specific sequence:
- Prep the vial. Slide off the protective blue paper cover and move it to the opposite end of the vial, away from the white applicator tip.
- Activate the medication. Squeeze the vial firmly on the arrow shown on the blue cap until you hear it snap. This releases the liquid inside.
- Saturate the tip. Hold the vial with the white applicator tip pointing down so the medication flows into it.
- Numb first, then rub. Gently touch the cold sore with the saturated tip to numb the area. Once it feels numb, rub the tip more firmly over the sore and surrounding skin to help the treatment penetrate.
- Discard after use. Each vial is single-use only. Throw it away when you’re done.
Most cold sores require multiple treatments over the course of the outbreak, so you may need several vials. As with the cream, make sure your lip area is free of cosmetics, lotions, or residual food and drinks before applying.
When to Apply During a Cold Sore Outbreak
Cold sores typically progress through several stages over 7 to 10 days: tingling, blistering, oozing, crusting, and healing. Orajel is most useful during the blistering and crusting stages, when pain and discomfort peak. During the early tingling stage, an antiviral product (like one containing docosanol) is a better first choice if your goal is to shorten the outbreak, since Orajel’s benzocaine only manages symptoms.
The Moisturelock formula becomes especially helpful once the sore starts to scab over. This is when cracking, dryness, and tightness are at their worst, and the petrolatum and dimethicone in the formula keep the scab soft and less likely to split. A cracked scab can bleed, hurt, and delay healing, so keeping the area moisturized during this phase matters.
Safety Concerns With Benzocaine
Benzocaine can cause a rare but serious condition called methemoglobinemia, where red blood cells lose much of their ability to carry oxygen. The FDA has specifically warned against using benzocaine products in children for teething pain, noting that these products can be dangerous and have led to serious injury and death in children. For cold sores in young children, talk to a pediatrician before reaching for any benzocaine product.
Adults using Orajel for cold sores at the recommended amount are at much lower risk, but you should stop using it and seek medical attention if you notice symptoms like pale or bluish skin, shortness of breath, rapid heartbeat, or confusion after application. Allergic reactions to benzocaine, while uncommon, can also occur. If you notice increased redness, swelling, or a rash beyond the cold sore itself, discontinue use.
When Orajel Isn’t Enough
Orajel is a comfort measure, not a cure. If your cold sore is large, deep, or unusually painful, or if you have a weakened immune system from conditions like HIV or cancer treatment, you likely need a prescription antiviral medication that actually fights the virus causing the outbreak.
Other signs that over-the-counter treatment isn’t sufficient include pus or increasing redness around the sore (signs of a secondary bacterial infection), a cold sore that isn’t healing or keeps spreading, sores appearing near your eyes, or frequent outbreaks throughout the year. Cold sores near the eyes are a medical urgency, as the herpes virus can cause serious damage to your cornea. If you get cold sores more than a few times a year, a doctor can prescribe a daily antiviral to reduce how often outbreaks happen.