large b-cell lymphoma

Hello my mom was diagnosed with large b-cell lymphoma about 2-3 weeks ago.  She has been in the hospital ever since due to her white count being extremely low ranging from 0.2 - 1.2.  She had her first round of chemo in the hospital.  She has not been eating due to no appetite and now she is having difficulty swallowing even water.  She says it burns in her throat and just can't get it to go down.  The lymphoma is in her spleen and lymph nodes.  Her spleen was 5 times the size of a normal spleen.  The dr has said that the CT scan showed that the spleen is smaller in size.  Her counts have not gone up and stayed up.  I was wondering if anyone has had anything like this or if anyone has any suggestions or advice.