I have a wisdom tooth that needs to be cut out which i will do when i'm ready, but it's causing all sorts of problems. eating is difficult, and my ear is extremely painful and feels as if it's a bit swollen. it feels infected. please help?

Now may be the time: That wisdom tooth may have its own time schedule, and it may need extraction whether you're ready or not. If infected, you'll need to see a local oral surgeon or dentist for antibiotics and an extraction. The sooner the better.

Wisdom tooth: Without examination and x-rays any a$vice would just be a guess, See a wisdom tooth expert, an Oral Surgeon, to determine extent of the pathology, presence/absence of infection or inflammation, damage to adjacent teeth and/or hard and soft tissues. You may not feel that you are "ready," but it seems the tooth is telling you otherwise. Listen to your body and your specialist.