There is a sticky you could fill out, 3rd from top. It will help us help you better. Make a QT tank with the water low; 3-4 inches so your fish can breathe easily if needed. Make sure it is warm, 80-82F. Put in the proper chemicals to treat the chlorine. If you have stress coat or tannis, put that in. Epsom salt if you have that 1tsp/gal.
Unsure why he is doing that with no info. Could be a number of things. =(
whoops, Maggie beat me.. fill that out =)