Dry, cracked, peeling lips are almost always simple chapping — thin lip skin (which has no oil glands) losing moisture to cold air, sun, wind, dehydration, or repeated lip licking. The fix is applying a plain fragrance-free ointment frequently, stopping the licking, and staying hydrated; most heal within a week or two. When the corners of the mouth stay split and sore, or chapping won't quit, that can be angular cheilitis or a contact allergy, and a clinician can review your photos online and prescribe the right cream.
Seek prompt care if: a single sore, ulcer, or spot on the lip doesn't heal within a few weeks, lips become significantly swollen, blistered, or crusted, you have facial swelling with trouble breathing, or there are signs of infection (spreading redness, pus, fever).
See a clinician nowWhat chapped lips actually are
Lips are covered by very thin skin with no oil glands, so they dry out far faster than the rest of your face. Chapped lips (a form of cheilitis) are simply lips that have lost too much moisture — they become tight, flaky, cracked, and sometimes sore. It's one of the most common, harmless skin complaints, especially in winter.
Triggers include cold and dry air, sun and wind, dehydration, mouth breathing, and the single biggest culprit: licking your lips, which feels soothing but evaporates and strips moisture, making things worse. Persistent cases can involve an allergy to a lip-product ingredient, or angular cheilitis — cracked, infected corners of the mouth that need a prescription cream.
What it looks like — common signs
If these describe what you're experiencing and you have no red flags, telehealth is a reasonable next step:
What to do right now
Most chapped lips respond to simple care started today:
- Apply a plain, fragrance-free ointment or balm (petrolatum-based) often, including before bed.
- Stop licking, biting, and picking — this is the most common reason lips won't heal.
- Stay hydrated and use a humidifier in dry indoor air.
- Use a lip product with SPF outdoors to protect from sun and wind.
- Avoid flavored or heavily fragranced balms if your lips are reacting — these can cause irritation.
Licking your lips feels soothing but does the opposite — it strips moisture as it evaporates. Seal them with a plain ointment instead.
How a clinician can help online
For lips that stay cracked despite good care, telehealth works well. A clinician reviews your symptoms and photos, looks for a specific cause — a contact allergy to a lip product, angular cheilitis (cracked corners from yeast or bacteria), or chronic sun damage — and can prescribe a topical antifungal, antibacterial, or anti-inflammatory cream as appropriate. They'll also flag the rare situations that need an in-person look.
Telehealth is NOT the right path for: a single non-healing lip sore, ulcer, or spot (always needs evaluation); significant lip swelling, blistering, or crusting; facial swelling with trouble breathing; or signs of spreading infection — these need in-person care.
How chapped lips are treated
The backbone is frequent occlusive moisturizing (petrolatum or similar), trigger avoidance, hydration, and sun protection. When a specific cause is present, treatment is targeted: a topical antifungal or antibiotic for angular cheilitis, removal of the offending product plus a short course of a mild topical anti-inflammatory for contact reactions. Truly persistent or atypical lip lesions are referred for in-person evaluation.
How long does it last?
Simple chapped lips usually heal within one to two weeks once you moisturize consistently and stop licking. Angular cheilitis at the corners can take a couple of weeks with the right prescription cream. Lips that stay cracked beyond two to three weeks despite good care, or any non-healing lip lesion, should be evaluated.
Frequently asked questions
What causes chapped lips?
Lip skin is thin with no oil glands, so it dries easily. Cold or dry air, sun and wind, dehydration, mouth breathing, and especially repeated lip licking strip moisture. Some medications and lip-product allergies also contribute.
Why won't they heal?
Constant licking and picking re-injure the lips. An ingredient in a lip product may be causing a reaction, or cracked corners may be angular cheilitis, which needs a prescription cream rather than balm alone.
What's the best treatment?
Apply a plain fragrance-free ointment often, stop licking and picking, stay hydrated, and use an SPF lip product outdoors. Most chapping heals within a week or two; persistent corner cracking may need an Rx.
Can they be treated online?
Yes. For persistent or recurring cases, a clinician can review your symptoms and photos online, identify causes like angular cheilitis or contact allergy, and prescribe the right cream when appropriate.
When should I see a doctor?
If lips stay cracked despite good care for more than 2 to 3 weeks, the corners are split and sore, there's bleeding or crusting, or a single spot or sore on the lip doesn't heal.