Hi Kristen, I am going to say that it was at least 5 weeks to where I didn't need anything for pain. My areas of pain were where the radiation was directed to on my tongue and the back of my throat, so swallowing was a problem. I think the back of my throat is still irritated because the mucous is still there. The tongue feels ok except when anything hot, spicy, tart, acidic or sharp hits it in the treated area. Even if you are not eating or drinking much, you might go ahead and get the magic mouthwash filled to be more comfortable now. Just swish it around and either swallow or spit. I really didn't have any problems with speech unless it was just too painful to talk during treatment. So, no, I did not have to do therapy. I do find that the dryness is a factor in speech. With no saliva, if I talk too much or have a long conversation with someone, I really need to have a drink handy.