Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concerns..
As per your complain it looks like dry mouth
is the cause for sores inside mouth as dry mouth causes thinning of the mucosa that makes it more prone to get ulcerated, inflamed and painful..
It is not a sign of oral cancer
and Dry mouth can be due to causes like Severe dehydration
, side effects of medications if you take any,salivary gland
dysfunction, nerve damage
supplying salivary glands, oral infections like thrush,Sjogren's Syndrome..etc..
-For dry mouth chew sugarfree chewing gums..
-Drink plenty of water.
-Avoid regular mouthwash and use specialized mouthwash that are formulated for dry mouth patients like Biotene..
-You can also instil artificial saliva drops..
-Suck tart candies as it also stimulates saliva flow..
- For sores if they are painful apply numbing gel containing Lignocaine or Choline Salicylate..
If does not improve consult an Oral Physician and get evaluated..
Hope this information helps..
Thanks and regards.
Dr.Honey Nandwani Arora.