Sorry to hear about your son's problems but there is one problem he doesn't have and that's a tight foreskin.
It's tight because it's supposed to be tight. That's the way young boys are supposed to be and that natural and normal condition shouldn't be interfered with or you can cause problems more than what he already has. The foreskin opening is surrounded by a band of tissue that keeps it closed to protect the inner preputial space. In young boys, the band is comprised of non-elastic tissue and trying to stretch it open will cause the formation of scar tissue that will not be elastic and will prevent retraction later. This condition is called "acquired phimosis" or 'pathological phimosis" and may require circumcision to resolve it. When the time for your son's foreskin to retract comes, this band of tissue will be replaced with a band of elastic tissue and he will be normally retractile. You can not rush the process and only his body will know when its time for this to happen.
You should also forget that steroid cream. It's betamethesone .05% cream and it's for adults, not children. While there are no negative effects of the cream, there are definitely negative effects of trying to prematurely achieve retraction. If you could take your son off of antibiotics when he is retractile, you can take him off of them before he is retractile. It will make no difference. With the moderate case of reflux your son had, (has?) I suspect he has already out grown it any way. The foreskin has nothing to do with blood in the urine, absolutely nothing!
Frank
It's tight because it's supposed to be tight. That's the way young boys are supposed to be and that natural and normal condition shouldn't be interfered with or you can cause problems more than what he already has. The foreskin opening is surrounded by a band of tissue that keeps it closed to protect the inner preputial space. In young boys, the band is comprised of non-elastic tissue and trying to stretch it open will cause the formation of scar tissue that will not be elastic and will prevent retraction later. This condition is called "acquired phimosis" or 'pathological phimosis" and may require circumcision to resolve it. When the time for your son's foreskin to retract comes, this band of tissue will be replaced with a band of elastic tissue and he will be normally retractile. You can not rush the process and only his body will know when its time for this to happen.
You should also forget that steroid cream. It's betamethesone .05% cream and it's for adults, not children. While there are no negative effects of the cream, there are definitely negative effects of trying to prematurely achieve retraction. If you could take your son off of antibiotics when he is retractile, you can take him off of them before he is retractile. It will make no difference. With the moderate case of reflux your son had, (has?) I suspect he has already out grown it any way. The foreskin has nothing to do with blood in the urine, absolutely nothing!
Frank