Welcome in H.C.M.
I have gone through your query regarding white stuff all over both tonsils and they are swollen and painful. Along with this there is swollen nodes on both sides of neck and are painful.
As per your clinical history you are suffering from acute follicular tonsillitis
with cervical lymphadenitis
.though you are getting treatment in the form of antibiotic but symptoms are still there. Here I would like to tell you to add these in your existing treatment-
(b) Warm saline gargling.
(c) Plenty of fluid orally.
I hope this will help you.