yes... that is a bad case of ich... there are tons of ways to cure ich and alot of meds you can use.... as for my expierience w/ my pbass raising the temp to 86-89F would burn the ich of of them... but in your case i dont think your parrot can handle temperature like pbass can.. so i would bump it up to only 84-85F. and use coppersafe, it reacts to ich fast and cures them in no time.. if you do choose to use coppersafe which is sold @ any LFS or petsmart/petco... make sure you read the directions carefully and do not overdose... its a capful for every 4gals, so... however much you need leave 20 gal extra! IE... you have a tank thats 125 gals, only put enough copper for 105 gal... k...
well best of luck whichever direction you turn too... & wichever you do MAKE SURE YOU READ DIRECTIONS CAREFULLY..