You can take vitamins B1, B2, B6 and B12 for keratitis, if it is malnutritional keratitis, which is mainly caused by the deficiency of vitamin B. In this kind of keratitis, the manifestation will be erosion or ulceration of the corners of the mouth, and the pain is sometimes not obvious. After the emergence of this kind of stomatitis, timely supplementation of vitamin B can quickly relieve the symptoms and eliminate the condition of stomatitis. Therefore, if keratitis occurs, you can first go to the hospital to determine whether it is caused by a lack of deficiency of vitamin B, because part of the keratitis is caused by an infection, a bacterial, fungal or viral infection. For the treatment of this type of stomatitis, simple supplementation with B vitamins is not very effective.