Dazz - really pleased to hear you're home!
Just wanted to offer you my sympathies as I have a pretty good idea what you're going through. I was involved in gas flash fire a few years back and had 19ish% burns to arms, legs and face, most of which looked just like what you've got going on there. Spent a week in the burns unit, then back/forth for two more getting dressings changed.
Pleased to say that within about 6 months it had all faded, and after a few years the marks were pretty much gone. All I would do is echo what Dave1966 said about the sun...I was two years before I dropped below factor 50 and a hat! Even then I turned scarlet in an instant

I also found that drinking red wine turned me EXACTLY the same colour as what was in my glass

- friends had to wear

just to go drinking with me...
Keep swearing at the physio girl - she's used to it... and keep sucking the gas/air on the dressing changes - trust me...they do get easier every time.
Lee