Moving back to the UK

[ashleyoverton]

Hi All,
Just a quick question, I have suffered with Psoriasis for the last 20 years, I have finally found something that works for me Stelara. I am on the 90mg Injection and started treatment in October 2016, I will be having my first 3 monthly injection on Thursday 16th February, after having the 2 injections 1 month apart.
For the first time in 20 years I now do not have to cover up out of embarrassment and am wearing shorts and T-shirts, all be it spoilt in the Florida Sunshine,
My question is, having been in the USA for the last 18 months and returning to the UK permanently at the end of March, I have continued to pay my class 3 National Insurance throughout my time here for a meagre pension and other benefits, should I need them. 
Is Stelara readily available in The UK, particularly Brighton which is where I will be moving back to ? Or is it a postcode lottery with regard to funding ?
Any information would be greatly appreciated as having found something that finally works I would now hate to go back to being as I was previously. 

Thanks in advance,

Ashley