Few days ago, I noticed a couple of very small

Patient: Few days ago, I noticed a couple of very small white spots on my right tonsil. I was having cold at that time and I was sneezing a little bit. There was also a sharp pain on that side of my throat along the vein, however it was not unbearable. Today, I noticed the white spots have now developed into white patches and they are a lot now. I am also having cough. I am worried. What could this be? Does this sound like something serious?

Symptoms: Cough, very mild (almost unnoticeable) pain

Doctor: