Posterior Blepharitis/Chalazia/MGD

Hi, I posted a while back but can not seem to find my thread.
My daughter is 9 and she has been suffering from a constant, alternating lid (top and bottom) chalazia problem.
An opthamologist had told me that the stem of the problem is posterior blepharitis. The blepharitis seems to inflame her eye, causing light sensitivity, redness and then a chalazion. Unfortunately, the only remedy he has given is steroid drops and warm compresses which do not seem to unclog the duct and only offer a bit of relief with the inflammation.
I want to avoid this problem altogether.
She is otherwise in great health, only main concern is slight attention defecit.
The chalazions stay for months on end and once it has gone down, it cause scarring and permanent redness and then a new one pops up in a different place (usually the other eye)
Any help would be greatly appreciated. I'd like to try homeopathy as a proactive measure. I am just unsure as what to purchase and how much to give.
Thanks!
Holly