Travel for treatment - is there anything I can claim to help with the cost?

I am an O.A.P.  and I have to have Radiotherapy for seven weeks in Birmingham.

I live the other side of the city and have to catch the train before off peak times and my wife wants to accompany me

The last time I went it cost me £4 alone so this treatment is going to cost me a lot of money like £40 a week

Is there any concession I can claim to offset this cost

thanks in advance for your help

regards

owen