hello..my question is related to cataracts.my mother is scheduled for a cataract surgery this week.she has had a pdp (hair color) allergy 6months back.with severe swelling..we did not visit a doctor then .the swelling went away in 4 days after taking antihistamines 3 times daily and apllication of hydrocortisol cream..and washing the hair with hydrogen peroxide solution..i can she go for cataract surgery now.would it be harmful?