I'm guessing that you mean to say that you have pain on one side of your mouth, and your ears, and your lips are itching, and you have a white lining inside your mouth. Ok so based on that it sounds like you have a white lesion in your mouth along with deep caries in your molar teeth. Now without clinical examination of the problem, it can't be diagnosed. So I will suggest you to see a dentist as soon as possible.
Next Steps
Consult an Oral Surgeon
Health Tips
Do not delay, because if it really is a white lesion, it can lead to other complications.