Lips have a piece of whitish like ulcers and not painful, consider oral lichen planus, oral mucosa white spots, white keratosis, etc., mainly drug treatment, remove local irritants and so on.
1. Oral lichen planus: this is a relatively common chronic inflammation of the oral mucosa, if it occurs in the lips will appear reticulate or white stripes, can be applied locally Vitamin A cream, adapalene, when the symptoms are more serious can be oral prednisone, methotrexate and so on.
2. Oral mucous membrane leukoplakia: this is a white patch or plaque that occurs in the oral mucous membrane and may also occur on the lips, it should be supplemented with vitamin A, vitamin E, apply cod liver oil, and when the symptoms are severe, it can be taken orally with vitamin A acid.
3. White keratosis: this disease is long-term mechanical or chemical stimulation caused by white keratotic spots, if there are bad restorations, stump roots, stump crowns, etc. should be removed in time, if the keratosis is serious, you can use Vitamin A acid, all-trans Vitamin A acid and so on.
Lips have a piece of white like an ulcer and does not hurt may also be other reasons, should go to the hospital in a timely manner, clear reasons for standardized treatment, the above drugs should be used in accordance with medical advice.