Here is the treatment for dryness around the mouth

Causes of dryness around the mouth, the skin around the mouth can dry out for many reasons, such as: allergies or irritation, cold or windy weather, excessive exposure to the sun, excessive face washing, harsh drying of the skin, perioral dermatitis, other medical conditions, such as rosacea or eczema or psoriasis.
Treatment of dryness around the mouth: You must first know the cause of dry skin around your mouth, if you notice the appearance of blisters, inflammation, or severe redness and pain, you should consult a dermatologist, if you notice peeling skin and dry patches, it may be the possibility of an allergic reaction, and this is how you can get rid of dry skin around your mouth:
• Buy a detergent that does not contain any chemicals or harmful odors, and avoid using detergents that contain alcohol, perfumes and artificial colors, because they can cause allergies and irritate sensitive skin.
• Gently moisturize the area around your mouth twice a day. Look for ingredients like ceramides and hyaluronic acid.
• Apply sunscreen, as a drop or two of sunscreen can save you from many skin problems, and make sure to apply sunscreen 30 minutes before you go out from the house and before exposure to the sun.
• Be sure to exfoliate your skin, as exfoliating your skin can help you get rid of dry patches around your mouth, so that new, healthy skin cells appear.
• Follow healthy habits. Eating healthy food and drinking enough fluids is necessary to maintain the health of the skin, and be sure to follow a low carbohydrate diet rich in fruits and vegetables.
• Apply lip balm, as your lips must remain as moist as possible. This will also prevent you from constantly licking your lips, which exacerbates the dryness around the lips.
Use home remedies to treat dry mouth, such as:
Honey: not only does honey protect your skin from drying out, but it is also an effective treatment for most skin problems. Take a teaspoon of honey, add a pinch of sugar and rub it gently on and around your lips to remove dead skin.
Coconut oil: It can help soothe dry skin and moisturize the affected area, it also improves skin functions that can help your skin retain moisture.
Aloe Vera gel: This ingredient can work wonders in treating a range of skin problems, Aloe Vera gel is effective in reducing the symptoms of drastic dry skin. Use it on your face for several days in a row in case of severe dryness, and continue using it routinely to keep the skin moist.