I just had part of my tongue removed in January - and it took a full 4 weeks before the swelling in the actual tongue went down - but it did eventually go down. Good luck.

SCC Right Lateral Tongue T2N0M0 Dx 01/12/06, Surgery 01/25/06. Partial Glossectomy, Bilateral Neck Dissection - 22 lymph nodes - all clear. No radiation.