Girls, hello everyone. Ultrasound of the baby's brain showed a small a…

Girls, hello everyone. Ultrasound of the baby's brain showed a small arachnoid cyst. They prescribed Elkar and now the baby has problems sleeping. I don't know if this is related to the drug or not. Can anyone tell me if they had something similar, did it go away? Is this medication worth sleepless nights for the child? The baby simply doesn't want to sleep anymore, there are no tantrums left.