Navel pain in Non-Hodkins (B-Cell-High Grade) after Chemotherapy

Hi All,

 

My aunt 87 yrs was diagnosed with NHL (B-Cell; High grade)...She has received 7 chemo sessions that includes (6 rituximab dosage as per prescription)..She is experiencing stomach pain most near Navel part for the past 7-8 days. Is this normal? Doctors says the tumor is shrinking and pain maybe of because of that. Any suggestions on pain treatment would be helpful. As of now she takes Ultracet/Tramadol for pain relief but sometimes it helps and sometimes not..

 

Regards,