your child's situation sounds similar to mine, except mine is allergic to food and dustmites instead of pollen. do you think it may be that the vaseline acts as a barrier against the pollen?
I am not sure if the vaseline acts as a barrier or not..... that is kind of interesting to think about though. In some ways, in order to figure that out, I think you'd really have to track your child, what they do, what they touch, what they eat, etc. Which we did, in order to really try and find out what was the cause. Sometimes you don't get something definitive, but at least a better hunch as to the cause. You also have to have a break, when the skin is better, so that you can track from that point, until when it gets worse again, and the possible triggers within that window.
But, I would say, for our son whose eczema was the worst, with the skin infections, we discovered his egg allergy when he was a baby. So, we hadn't had them in the house since then. We didn't write off the idea of the development of new food allergies though. We did go through some other testing, and eliminated anything that showed up on the RAST as possible.... even the most minute. Wheat was the worst to work with. Rice bread is not very tasty!
In the end, through trial and error, lots of testing, a couple allergists, and ripping out a lot of our front and back yards, by 9 years old, his eczema is almost non existent comparatively speaking to where we started.
For me, especially, I also went through the weeping skin, swelling, essentially looking like I had been beaten up, and wanting to just scratch my skin right off my face, in college. Back then, I couldn't go to an allergist until the regular doctor did a referral. That regular doctor wouldn't give up until he had guinea pigged me to death. Every antihistamine, every eye drop..... creams... everything..... and when nothing worked... I kept asking.... and I remember that last appointment, and he said to me that he'd give me a referral, but that the allergist was just going to give me a cortizone shot, and that he could do that too.
Well, I didn't care. And, I got to that allergist. I knew I had to get there. And, he helped me. Did skin scratch testing. For me, it was environmentals. Found out I was allergic to things .... like cats..... that I had no clue about. Not good to have had them on my bed all those years. Explained a lot of illness for me. I did immunotherapy with that allergist, and got some better medications, including a nasal spray that did wonders.
Anyway, point is with my story, the weeping skin is horrific, and I wouldn't stop until I figured that one out.
It can be a long road. A tiring one. And sometimes you have to find the one thing that will make your child at least more comfortable while you figure out the cause, and while you find the right doctor. I think starting with the pediatrician is a good place. Even if they can't solve the problem, they can almost be a clearing house for a lot. They can order RAST tests, they can prescribe creams, and they also will know (or should) about the various doctors, and hopefully more than one of any specialty, that can help you.