Dr Joshua Adebayo
Itchy eye is most probably due to allergy. You are possibly reacting to something in the environment since you weren't having such before now.
So, the first solution is to carefully study what is causing it. This can be by studying what you do that makes it get worse. It may be certain type of food or animal products such as poultry, dairy etc. Once this is done, then try to avoid this agent causing the allergy.
Then, to resolve the current itching, you may get anti-allergic eye drop, any of them, and apply for three to five days. If there is no response, please, see ophthalmologist.