I wear contact lenses and often suffer from itching and red eye..what is going on?

Probably allergy: Sounds like you could be allergic. It could be due to solutions, the lenses (giant papillary conjunctivitis) or even unrelated to both. I would check with your eye doctor on this.

Allergy: It sounds like an allergic reaction. Please consult your doctor for a different contact lens material or solution. You may want to use preservative free contact lens solution and daily contact lenses are less problematic and better tolerated.