The reason for your itching can be allergy. Start eye drops olopat three times a day and eye drops refresh tears 4 times a day. If the itching is more at the lid margins, start eye ointment ocupol-d twice a day at lid margins. As far as your squint is concerned, you need a detailed ophthalmic evaluation including refraction and other orthoptic checkup.
Next Steps
Consider visiting ophthalmologist for squint