Hello, I have white spots on my palate and also uvula. These looks like blisters, also going away quite fast, but new are appearing. No fever present.

White spots. May be viral. see your Dentist for evaluation and symptomatic relief.
Canker sores. Treatment usually isn't necessary for minor canker sores, which tend to clear on their own in a week or two. Over-the-counter pastes, creams, gels or liquids may help relieve pain and speed healing. Lignocaine gel, Orabase paste, Antiseptic mouth rinses containing hydrogen peroxide. Large, persistent or unusually painful sores with fevers need medical care and prescribed meds containing steroids.