Sore Throat/ tonsillitis. For reference!

Hi, I am having swelling near my tonsils area and also have noticed a white thing around the swollen area near Throat. I am not sure if it's tonsils or sore Throat. Symptoms I am having is redness over the area and difficulty in swallowing. I do not have any other Symptoms. Like cough, running nose or fever, nothing at all. Only difficulty is swallowing. Also from past 2 months nobody in our has stepped out, all our groceries and essentials are delivered at out doorstep. I also worried if it's covid symptom, but confused as none of us in the house are exposed to anybody outside. Please let me how I should handle this and also treatment. I have a 3.5 years kid so I don't want to go out for consulting doctor. Attaching pic for reference