Hello A. There is no cure for allergy B. Allergy may trouble him every year during summers C. Precautions include avoid exposure of dust,avoid rubbing eyes and cold compresses D. Eyedrops may be required for very long period You can consult local paediatric ophthalmologist Feel free to discuss this in detail

Try to find out the allergens ie things which increase allergy.if not noticeable then get the atmospheric allergy test done and avoid exposure to the detected allergens or get the vaccine prepared and injected as per the advice of doctor. At present you can do cold compresses with ice and put Betoact eye drops 2to3 times daily and rub ocupol d's eye oint twice daily on lids and some lubricant eye drops e.g. teardrop 2to3 times daily.