Dry, Chapped Lips (Cheilitis): Causes and Lip Care That Works

Most dry, chapped lips heal within 2 to 3 weeks if you stop licking and picking them, apply a plain, fragrance free lip balm or petroleum jelly several times a day and before bed, and protect your lips from sun and wind. If your lips stay cracked despite this, or you have splits at the corners of the mouth or a rash around the lips, you may have cheilitis caused by an allergy, infection, deficiency or sun damage, which needs a dermatologist’s assessment.

Dry lips are a year round complaint in India: winter winds in the north, air conditioning in offices, and fierce sun everywhere. Many people respond by applying flavoured balms all day, which can quietly make things worse. Here is what actually helps.

What causes dry, chapped lips?

The NHS lists common causes:

• Cold weather, dry air or wind
• Sun damage
• Dehydration
• A lip injury
• Allergies
• Sometimes, a lack of certain vitamins and minerals

Other common triggers include:

• Lip licking. The American Academy of Dermatology (AAD) explains that saliva evaporates quickly and leaves lips drier. DermNet identifies lip licking as the major cause of irritant cheilitis.
• Irritating lip products, including flavoured and fragranced balms.
• Breathing through the mouth, especially at night.
• Medicines. DermNet notes that oral retinoids such as isotretinoin commonly cause dry lips. Our guide to isotretinoin explains how to manage this.
• Eczema. People with atopic dermatitis often have dry, scaly lips.

What is cheilitis?

Cheilitis simply means inflammation of the lips. The main types are:

Type	What it looks like	Common causes
Irritant cheilitis	Dry, scaly, red lips and skin around them	Lip licking, cosmetics, foods, weather
Allergic contact cheilitis	Redness, scaling, itching or burning	Lipstick, lip balm, toothpaste, foods, nail varnish
Atopic cheilitis	Dry, cracked lips	Eczema
Angular cheilitis	Red, cracked, sore corners of the mouth	Saliva, thrush, dentures, deficiencies
Actinic cheilitis	Dry, scaly, thickened lower lip	Long term sun exposure

Allergic contact cheilitis

DermNet notes that an allergic reaction is found in at least a quarter of people with eczema of the lips. Common sources include lipsticks and lip care products, toothpaste and dental materials, foods, medicines and nail varnish, which can transfer from fingers. Patch testing, including your own products, is very useful. Our guide to patch testing explains what to expect.

Angular cheilitis

DermNet describes angular cheilitis as a common, non contagious inflammation at the corners of the mouth. It usually happens when saliva sits in the corners for long periods. Risk factors include:

• Dry, chapped lips of any cause
• Oral thrush, which is more likely in infants, older adults, people with diabetes and those on steroids or antibiotics
• Dentures, especially if they fit poorly
• Poor nutrition, including iron, riboflavin (vitamin B2), zinc, vitamin B12 or folate deficiency
• Conditions such as inflammatory bowel disease
• Isotretinoin and similar medicines
• Smoking and rapid weight loss

Lip licking makes it worse. Because thrush or deficiency is sometimes involved, recurrent angular cheilitis should be checked by a doctor rather than treated with random creams.

Actinic cheilitis

DermNet explains that actinic cheilitis is sun damage of the lips, usually the lower lip, and that it is the lip form of actinic keratosis, a precancerous change. It mainly affects adults with fair skin who spend long hours outdoors in tropical climates, such as farmers, labourers and traffic police. Signs include a persistently dry, scaly or thickened lower lip, white patches, and a blurred border between lip and skin. The AAD also describes it as a precancerous condition that needs a dermatologist.

How should you care for chapped lips?

The AAD and NHS recommend:

1. Stop licking, biting and picking your lips. When you feel the urge, apply balm instead.
2. Use a non irritating balm several times a day and before bed. Plain white petroleum jelly is one of the best options for very dry, cracked lips, as ointments seal in water longer than waxes or oils.
3. Choose soothing ingredients, such as petrolatum, shea butter, ceramides, dimethicone, castor seed oil or mineral oil, ideally fragrance free.
4. Avoid irritating ingredients while your lips are chapped, including camphor, eucalyptus, menthol, flavours such as cinnamon, citrus and mint, fragrance, lanolin, phenol, salicylic acid, and the sunscreen filters octinoxate and oxybenzone.
5. Protect your lips from the sun. The AAD suggests a lip balm with SPF 30 or higher containing zinc oxide or titanium dioxide, reapplied every 2 hours outdoors.
6. Drink enough water.
7. Avoid holding metal objects such as pins, keys or jewellery in your mouth.
8. Use a humidifier in the bedroom if indoor air is dry, especially if you breathe through your mouth at night.
9. Wash your hands before applying balm and do not share lip balm, as the NHS advises.

The AAD notes that if a product burns, stings or tingles, it is irritating your lips, not “working”. Stop using it.

What about home remedies?

Many Indian families use ghee, malai or coconut oil on lips. These are generally gentle, but they are not more effective than petroleum jelly, and lip scrubs with sugar or lemon can irritate already cracked lips. If you notice burning, redness or swelling after any home remedy, stop it.

Can dark lips be treated?

Lip darkening is common in brown skin and can be linked to sun exposure, smoking, irritation from products, or post inflammatory pigmentation after cheilitis. Our guide to dark knees, elbows and lip pigmentation explains the causes and options. Protecting your lips from the sun and treating any ongoing irritation are the first steps.

When is a lip problem an emergency?

Call 112 for emergencies or 108 for an ambulance if your lips, mouth, tongue or throat suddenly swell, or you have difficulty breathing or swallowing, wheezing, or feel faint. The NHS lists these as signs of anaphylaxis, a severe allergic reaction that needs immediate treatment.

Also seek emergency care if lip sores come with a spreading blistering rash, sore eyes or fever after a new medicine. See our guide to skin rash from medicines.

When to see a dermatologist

The AAD advises seeing a dermatologist if self care has not healed your lips within 2 to 3 weeks. Also see a doctor if:

• Your lips are hot, painful and swollen, which the NHS notes may be a sign of infection
• You have repeated splits or soreness at the corners of your mouth
• There is a rash around your lips or a reaction to a lip product or toothpaste
• Your lower lip is persistently scaly, thickened or has a white patch
• A sore on the lip has not healed in 3 weeks, or there is a lump. Our guide to mouth ulcers explains these warning signs
• You get recurrent blisters on the lip, which may be cold sores

Healthy lips usually need simple, consistent care rather than more products. If your lips are not healing, Dr. Maria offers online consultations to help find the cause.