Waiting for any kind of test is very stressful, but there is a lot of information on this site. It helps to keep busy so that you think about other things. My son's first indication of his tongue cancer was a very painful large lump on the side under his tongue. I think most of the time there is no pain but my son's cancer was wrapped around a nerve and he kept putting off seeing the dentist and when he finally did, he sent him to an oral surgeon for a biopsy. It's good that your husband had the biopsy. Did they say how long it would take to get the results? Until you do, it's best not to assume it's cancer until the biopsy says it is. If it seems your husband is way too anxious, you might check with the doctor to see whether he thinks something to relieve the anxiety would help him. There is so much good information on this site - way more than anyplace else so maybe you could start with the main page at
http://oralcancerfoundation.org/ and click on "Diagnosis", or any of the other links. There are also a couple of search functions there, as well as on this page, upper right for specific things that take you to a discussion thread. As a caregiver to my son, I found that looking up stuff helped me to keep busy. If you can think of something your husband enjoys doing, that might help or maybe seeing a funny movie so that the waiting time doesn't seem so long. I am sure you will be hearing from others here with experience more closely resembling your husband's. When you go for the results of the biopsy, it really helps to have someone go with you and your husband. The more people there are at an appointment, the better able you are to remember what the doctor said and it can be very reassuring later when you try to put together what was said or recommended. Think about taking care of yourself, too. Do you have family or friends that you can talk to? There are some really caring and compassionate people here, too - so come back here anytime you need someone to listen or answer questions, and let us know how you and your husband are doing.
