The swelling of your tonsils can be attributed to throat infection or even sometimes if the stones like you said are stuck inside the tonsil.
So if stone is the reason it won’t improve after medication what you require is to remove those stones in a gentle manner by simply massaging the tonsil with your finger from inside.
And if infection is the cause then medicines need to be taken so to have a proper knowledge of your situation you need to go for an online consult.
Pictures of your throat and tonsils would also be required to know the situation better.
Next Steps
Consult online
Health Tips
Avoid spicy and oily food and do a tonsil massage internally with your finger make sure you do it empty stomach and your finger doesn’t have a sharp nail also lubricate your finger with glycerin liquid.