What is this sore on roof of my mouth?

[Becca0176]

had it for a good few days now. Not registered at a dentist as we only moved to the area this January. Started off feeling like a blister then filled up as the photos show. Quite painful. I have just eaten and popped it, some pus and blood came out and now feels flatter but still stuff in it. Hurts to press with tongue. Not really had any toothache it's just the bump that aches/hurts. It's on my hard palate . Any advice would be great. I have some antibacterial mouth wash...

 

[svor1988]

Interesting. Try each of the following twice daily independently or in sequence to see what works and what doesn't:

• hydrogen peroxide (H2O2)
• Sodium bicarbonate (baking soda)
• Salt water

Your antibiotic mouthwash won't do a thing if the cause is viral... and can cause side effects due to resetting the oral flora with a result such as heavy oral thrush possibly. Try the above things first.... antibiotic should always be last resort...

If those don't work, seek professional help if it is within your means... not many professionals frequent here. If you want a true diagnosis then a professional isn't going to give it for free on here.

Herpetic stomatitis?

On a separate note, I don't know that the structural brown spots are on the left of your second photo.