According to the details you provided, your wife have the hydrosalpinx for around four years and I am sure that both of you must have tried so many treatment methods but gain no positive results. Due to this reason, the herbal medicine fuyan pill is suitable for your wife.
This Fuyan pill has lots of advantages that other treamtment does not have. such as can eliminate the hydrops for your wife, can clear the infection for your wife, which is the root cause that can produce more hydrops, can promote blood circurlation and QI, self-healing ability and the immunity. To know the details, I recommend you to visit this page: http://global.fuyanpills.com/DT/Tubal_Conditions/2012/0726/276.html
As for the IVF, which might come to your mind thousands of time, this is not the best way, not only because of the cost, but also because of the low successful rate. To know why the successful rate is low, please visit this page: http://global.fuyanpills.com/DT/Tubal_Conditions/2013/1215/550.html.
If you have any questions or want to know more treatment options, please contact our online doctor