My son catches eye allergy frequently... We are taking treatment for last 1 yr but can't find reason of allergy. as soon as started putting drop he get relief n after completing course again within 1 month again allergy started. Dr check his sight regular ly also done his complete internal eye check up also. dr told me nothing to worry it's jus allergy. but my question is why he is not getting relief complete ly. can i try homeopathy treatment.