What could be causing sores around your nose and mouth?
Sores around the nose and mouth can have infectious, inflammatory, allergic, or mechanical causes, so appearance guides care.
What different forms can sores around the mouth take?
A sore may be a blister, crust, crack, ulcer, pustule, or inflamed patch. Saliva, cosmetics, toothpaste, friction, viral infection, and bacterial infection can all affect perioral skin; dental appliances can injure nearby tissue.
How can you care for sores around your mouth now?
Keep the area clean, avoid picking and sharing towels or lip products, and stop a newly introduced product touching the lesion. Do not use prescription creams without advice.
When do sores around the mouth need prompt care?
Seek prompt care for spreading redness, severe pain, fever, eye involvement, or reduced immunity, and arrange assessment for a recurrent or non-healing sore.
What should you ask about sores around your mouth?
Ask whether the lesion is skin-related, oral, infectious, or caused by appliance friction, and whether a swab or dental adjustment is needed.
Frequently asked questions
What causes sores around the nose and mouth to look different?
Sores around the nose and mouth can have infectious, inflammatory, allergic, or mechanical causes, so appearance guides care.
What should happen next?
Ask whether the lesion is skin-related, oral, infectious, or caused by appliance friction, and whether a swab or dental adjustment is needed.
What can explain the symptom or concern?
A sore may be a blister, crust, crack, ulcer, pustule, or inflamed patch. Saliva, cosmetics, toothpaste, friction, viral infection, and bacterial infection can all affect perioral skin; dental appliances can injure nearby tissue.
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Who wrote this page
This library is published by Dental Nation, a licensed dental group practising in the United Arab Emirates. Pages are written and overseen by the same clinical team that treats patients in our clinics, and are held to a fixed editorial standard for safety and accuracy.
This page is patient education, not medical advice, and cannot replace an examination. Anything urgent — facial swelling, trauma, uncontrolled bleeding or severe pain — needs a dentist or emergency care now.

