How does lidocaine work?
Lidocaine is a local anaesthetic that numbs the area where you've used it.
It works by stopping nerves from sending pain signals to your brain.
If you use lidocaine treatment for mouth ulcers, a sore throat or teething, it will ease your or your baby's painful symptoms.
When will I feel better?
Lidocaine treatments for mouth and throat work quickly.
Most people will start to feel better within 30 minutes.
Is it safe to use lidocaine for mouth and throat for a long time?
You will usually use lidocaine for a short time to help with your symptoms. See your doctor if your symptoms do not improve.
Only keep on using lidocaine if your doctor or your dentist says it's OK to use it long term.
Are there similar medicines for mouth ulcers and sore throats?
Most of the treatments that you buy for mouth ulcers and sore throats contain lidocaine.
However, some of them contain a different local anaesthetic called benzocaine.
Benzocaine and lidocaine work in a similar way, but benzocaine is better for treating toothache and dental pain.
Ask a pharmacist for advice on the right treatment for you.
Will it affect my contraception?
Lidocaine treatments do not affect any type of contraception, including the combined pill, progestogen-only pill and emergency contraception.
Can I drive or ride a bike?
Yes. Lidocaine treatments for mouth and throat will not affect your ability to drive or ride a bike.
Can I drink alcohol while using lidocaine?
Yes, you can drink alcohol with lidocaine mouth and throat treatments.
Is there any food or drink I need to avoid?
No, using lidocaine mouth and throat treatments does not affect what you can eat or drink.
However, be careful when having hot food and drinks. Lidocaine numbs your mouth, making it easier to burn yourself.