I Took My Husband To The Hospital Tuesday Of Last

i took my husband to the hospital tuesday of last week and they found a mass on his upper lobe of his laft lung...i brought him back to the hospital this tuesday and they said he has fluid around his intestines...but his headache isn't going away..he is trying to stop smoking cigarettes... he has dry heaves some times he spits up flem but not to much... he isn't wanting to eat and i am making him drink gatorade , water... what do i need to do? Please help