Thanks for your query.
First of all I would like to ask you not to panic. If you are sure that its just skin of tomato and nothing else then dont worry it will go down with fluids or food bolus ...
If its causing too much of a trouble then you can consult an ENT specialist
he will remove it with his surgical instruments.
But may be its not just tomato skin but you are getting a sore throat
, in that case too no need to panic , follow your doctor's advice and it will be ok.
Hope this helps.
Update here how you stay.