Suggest Treatment For Erectile Dysfunction

erectile dysfunction

Hi
I was normal until the four weeks when I try to make a sex with my wife; just after few minutes I had an erection and it's hard to put inside her. Furthermore in this period when my wife comes nude I have no desire for sex. so could you tell me please what is the problem and is there any treatments
note: I haven't any problem (physical or Psychological)a specially with my wife and also in my work

Thank you for your attention

Faithfull
Ben