[lblax]

if you have truly tried working the dog 1st at long distances away from dogs and you have truly tried redirecting her and correcting her before she goes into a frenzie(after it starts its to late for anyone) and you have exausted you trainers capabilities to its fullest. you have to remember that sometimes dog aggression cannot be fixed (however in your case i believe it is because of your nerve /poor timing and inadvertainly rewarding for bad behavior) and truly dogs dont have to like other dogs however if your going to take yours out in public it must get to the point to where at least you can control it.it has been mentioned before that prong collars are used at times to stimulate drive (this is true ) butthey also can if done correctly break almost any bad behaviour. while i believe in motivational and training within the drives there are some dogs and some behaviours that while i hate to say this have to be broken(when it gets to this point it is usually because of previous mistakes by trainers or handlers) if youve truly exausted all your choices then that leaves 3 choices 1. never take your dog where they will be in contact with other dogs 2. try to find a local sch. club willing to help you out with this(club not a trainer) dog aggression is something most clubs have experiance in handling with many high drive dogs. 3. back tie your dog to somethiong he can not move attach the back tie to a prong collar put another prong collar(if one doesnt work you may need to put 2 and have 2 handler) attache a line long enough that the dog cant get to you again start with another dog in the distance as soon as your dog sees the other start with no no no or leave it slow and calm if he remains calm praise from a distance throw some treats to him (dont approach the dog) if your dog immediatly gos off on the other dog not only will he corect himself on the lunge you need to hammer him with hard corrections basically until he decides this behaviour is not worth goeing through this. if he calms after corrections (regardless of how long it take) do not praise him praise him only if he doesnt react.,
keep working this and when he accepts the presence of a dog at one distance then next session move the dog closer and closer. i canty stress the importance of the 1st time he doesnt react of the great amoun of praise you need to give him praise him release him and take him somewhere and play then for a favorite treat in the car. you have a serious problem with your dog and by putting your trust in a citronella device make it even more dangerous, in the world of dogs sometimes it isnt alway pretty the things that must be done and if youve truly exhausted all other outlets you dont have much choices if you wanna keep your dog.