My ds suffers from v bad hayfever, it affects his eyes the most making them v v swollen and itchy. Last year and the year before we were using some eye drops ( opticrom, sodium cromoglycate). They helped a bit but at times he was still pretty bad. My gp wasn't very helpful, just said use 4 times a day which i did at random times depending how bad he was and not at all when not suffering. I have just heard that i should start using them before it starts and continue even when he is o'k as they are preventative. Can anyone give me any info about this or let me know how they have dealt with this. thanks.