Important: This page is general information, not medical advice. It does not recommend or prescribe any treatment. Always consult your doctor or pharmacist before starting, stopping or changing any medicine.
Quick facts
- Drug class
- Pediculicide [EPC]
- How it is given
- topical
- Type
- human otc drug
- Brand names
- Zilactin Early Relief Cold Sore
- RxNorm ID
- 581456
We do not publish dosing. How much of this medicine to take, how often, and for how long depends on your age, weight, kidney and liver function, other conditions and other medicines. That is a decision for the person who prescribes or dispenses it. Follow the directions on your own pack and ask your pharmacist if anything is unclear.
What it is for
Purpose Cold sore/fever blister treatment, Oral pain reliever
What it is used to treat
Use temporarily relieves pain caused by: cold sores/fever blisters canker sores, mouth sores gum irritations
Warnings
Warnings Flammable: keep away from fire or flame Stop use and ask a physician if sore mouth symptoms do not improve in 7 days condition worsens or symptoms clear up and occur again within a few days swelling, rash or fever develops irritation, pain or redness persists or worsens apply only to affected area do not exceed recommended dosage avoid contact with the eyes do not use for more than 7 days unless directed by a physician or dentist Keep out of reach of children . If swallowed, get medical help or contact a poison control center immediately.
Stop use and see a doctor if
Stop use and ask a physician if sore mouth symptoms do not improve in 7 days condition worsens or symptoms clear up and occur again within a few days swelling, rash or fever develops irritation, pain or redness persists or worsens apply only to affected area do not exceed recommended dosage avoid contact with the eyes do not use for more than 7 days unless directed by a physician or dentist
Keeping it away from children
Keep out of reach of children . If swallowed, get medical help or contact a poison control center immediately.
Other ingredients
Inactive ingredients boric acid, hydroxypropylcellulose, propylene glycol, purified water, salicylic acid, SD alcohol 37, tannic acid
Before you take anything new
Tell your pharmacist or doctor about every medicine you take — including ones bought without a prescription, herbal products and supplements. Interactions are one of the most common avoidable causes of harm from medicines, and a pharmacist can check your full list in a couple of minutes.
This page is built from the openFDA record of the U.S. Food and Drug Administration's approved labelling for this product, effective 6 November 2025. Label text has been shortened and reformatted for readability; safety wording has not been altered in meaning. FDA labelling describes products approved in the United States — brand names, strengths, formulations and approved uses may differ in your country. Always read the leaflet that comes with your own pack. PocketsInfo is not affiliated with, and is not endorsed by, the FDA. Retrieved 2026-07-30.