Toddler & Night Terrors

I was wondering if anyone else that has adopted a toddler has experienced night terrors. Since we have been home(I know it hasn't been that long , 6 weeks) Nicole has been having night terrors(up to 13 some nights). She is 2 1/2. We went to see a psychologist who told us she is doing fine adjusting and we should feel lucky because she sees families with much bigger problems. She said to just give her benadryl every night!!! Has anyone else's toddler expereinces night terrors? If so hwhen did they stop? How did they stop? we have a 4 year old daughter who had night terrors once in awhile, but Nicole's are everynight. Thanks for your help.Ursula