Private dermo but psoriasis better....

Hi all, I have recently booked a private dermatologist who is renowned as running psoriasis centres in the South (on the advice of another private dermatologist). I originally couldn't get a private appointment until late September but yesterday they called about a cancellation and I can be seen next Friday (woo!). Slight issue - after literally doing home NB-UVB since last September, applying steroid every day since the start of May, and clingfilm wrapping my horribly affected lower legs with enstilar overnight, I have gone from the worst, most fully covered guttate and plaque psoriasis of my life, to almost complete remission. This is, on the one hand, fantastic. On the other hand, my psoriasis covers my arms and legs as standard. It doesn't usually respond to any treatment (I've had it since 18), and I've no doubt it'll come back as it was when whatever magic combination of summer sun, low stress (I'm on holiday from university), summer clothes etc changes again. I am not one of those people who can display their psoriasis. I always cover it, and that really affects my mental health. It was the worst it has ever been on my lower legs until very recently, really raised and red and covering half of my leg. How should I approach this with my dermo. I was hoping to start the road to systemics but if I were a doctor and saw myself turn up, I'd be thinking of only topical in this snapshot?