Hi..
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..
Regards .