Balanitis and glans problem

[vmd76]

Hi, i'm 17 years old and I got the diagnos Balanitis about 9 months ago. I received a Dermovate cream from the doctor and used it once a day on my glans, which was mostly white and was stuck to my foreskin (not phimosis, it was attached). After 3 months nothing had improved so the doctor suggested circumcision, which I approved on.

After the surgery the scar seemed to heal well and it was fine. But now, a few months later, the glans still has the same weird white color. But thats not the major problem... When I have an erection now, the glans puts a great pressure on the urethra which makes it difficult to ejaculate. This is nothing i had problems with before. Sometimes most of the sperm get stuck inside the urine tube, and a few times it has happened that it just came out when the erection had gone away.
Let me explain how it looks like. Without erection (left illustration on the picture I draw) the glans looks fine (except for the color) but with an erection (the right one) the right side doesnt match the left side. Its like the red-marked part doesnt grow and put the pressure on the urethra instead of expanding the glans outwards.
I know this is a quite unusual problem since I've been searching about it a lot, and it must be really hard to answer. But one wonder I have is if I somehow can stretch out the glans so it takes a regular form, or is there another sollution to this problem? And about the color, what to do about it? Should I ask a doctor in my area?

Thank you!