New to Psoriasis

[Lookingforhelp]

Is it not a good idea to use the cream long term?  I seem to be hearing some mixed responses.  Somewhat odd that the dermatologist said I may need to use it for a year but some people are saying not to use it more than 4-6 weeks.  Will I know if the skin starts thinning and know to stop?  Is there anything obvious to look for, obviously thin skin but I'm not sure at this point what that change looks or feels like.  I do notice the veins look a bit unusual, more thin and darker in color than I tend to notice, but maybe I am just looking more than before.  Though whats odd is that this area is the only area i am not using the cream, the rest of the area looks normal.  Am I safe to keep using the cream potentially long term or should I consult another doctor to get a second opinion?  Not an area I want anything bad to happen.