I have red sores on my tongue that hurt. What could it be and how could I relieve the pain with natural treatment.

Tongue sores. Can be from many things: traumatic, canker sores, viral, fungal, are the most common types of ulcers but there are many other possibilities. You need to see a dentist who can diagnose the cause and depending upon what you have, will determine the appropriate treatment. You need a professional evaluation and not trial and error natural home remedies that probably won't do anything.
See a dentist. A dentist can properly diagnose the problem and give you treatment recommendations that are natural/palliative or conventional treatments based on your preferences and needs.