I had tongue cancer. treatment was 33 radio sessions + 3 chemo sessions with ciplastin.

I was wondering if anyone on the forums have had any experience with "mucositis'. I developed a bad case of it after the last radiation treatment to the neck/mouth area.

It's been almost 6 weeks since last treatment and I am in such a pain in the mouth that I cannot eat any solids and can hardly speak.

Please respond with your experiences and if you have any idea on what this "torture" can last?

Welcome JuanR, radiation keeps on working for just as long as radiation treatment lasted, 6 werks, so it is still working, and you need to keep doing all he preventive measures done during treatment. There can be other co-conditions too, which may be difficult to differentiate like bacterial, fungal and viral infections, and even those are difficult to tell apart. and each need to be treated with different meds. Even after all that, the rope mucus, and dry mouth follows. It takes time for most to resolve, sometimes from a few weeks, to months to years, but does get better. 6 weeks out is still early.

Just about everyone getting radiation to the oral cavity suffers from mucositis but everyone can "suffer" differently. IMO 6 weeks is really pushing the upper limit so as Paul suggested do get your cancer docs to take a look at this ASAP.