Hello Carol
Sorry to hear about your mum but also pleased that she is able to get on with her life.
I do take supplements to build up my immune system and I take Herb Robert daily (which my daughter sent to me from Australia and I cannot get in the UK). I also eat different varieties of nuts, fruit and vegetables. Anything red seems to be most beneficial. I pray on a daily basis and this is my form of meditation and support. I also use complimentary therapies such as Reiki, massage, accipuncture and manicures, pedicures, facials etc - anything that makes me feel good is a boost to the body, mind and spirit.
Perhaps Tarceva is not the answer for your mum, if it was I am sure the medics would prescribe it. I realise that it is very difficult looking on and seeing your mum in pain. All I can suggest is that you continue to love and support her and encourage her to do things that give her pleasure and that she wants to do. It is important that she is allowed to make her own decisions whatever they may be.
I shall pray for you both and hope that you find peace.
Jenny