Hi. Thanks for the query.. Pain in tongue after throwing up seems to be most probably due to inflammation or irritation of the tongue with the contents of the vomitus which must also contain stomach acid.. Other cause can be tongue muscle spasms.. So my suggestion is to take anti inflammatory painkillers like Ibuprofen and muscle relaxant. Gargle with numbing mouthwash containing Lidocaine or suck chlorseptic lozenges. Take soft and semi solid foods.. In case if there is no improvement consult an Oral Physician and get evaluated.. Hope this helps. Regards..