Heat lamps for psoriasis?

Hi all. Just joined and this is my first post. My daughter who is now 15 was diagnosed with juvenile arthritis when she was just 3. Over the years she has been going to gosh and has taken various medicines. Approximately 2 years ago she started to show almost on open wound behind her ears and on her scalp. This has been diagnosed as psoriasis and gosh has tried various creams, tablets, and are now reviewing her medicine she has for her arthritis (humirer). Until now nothing has helped and the wounds are getting worse and she is suffering from hair loss. Can anyone offer advice on specialist heat lamps that I can either buy, rent, courses to attend?? Also whether you think this is a good option for me to try. Thank you