Thanks for the query..Tingling sensation
and bumps on the roof of the mouth or the palate
can be most probably due to inflammation caused due to Infection if the Infection is not completely resolved.
Other cause can be sinus infection
You should continue with the prescribed course of antibiotics,start doing warm saline gargles and take anti inflammatory painkillers like Ibuprofen
In case if the symptoms does not improve consult an Oral Physician and get evaluated..
Hope this helps..