I know this is not your first rodeo and I must agree with others here that your husband needs to get biopsy results before treatment begins. He needs to know the type such as Squamous Cell and the sub-type as this will drastically change treatment regimes. This is 2023, not 1923 when we just zapped cancer and it either worked or it didn't. Somewhere there must be biopsy information. Check your husbands medical portal for test results.