My Sister Just Had A Cancerous Tumor Removed From Her

My sister just had a cancerous tumor removed from her liver she is now at home working on recuperating she is getting anxiety because of her fluid draining and dosent have much of an appetite she had surgery on the 3rd of april also is expierencing dizziness help me to help her i need to know about her fluid running if you can give me some tips thank you so much frances god blesd.