DianaPB,
Doug had 4 small spots in his lungs; these were treated with radiation. His oncologist was who had him do the radiation and it worked.
Each person is so different. This is something you two will have to discuss with your husband's oncologist.
Where are you located? Someone may have a suggestion for a doctor or location. We are in TN and I would recommend Vanderbilt to Tennesseans.
Best wishes to you.