Suggest Remedies For Absence Seizures In Three And A Half Year Old

my grandaughter is three and half months old. she has had i believe absence seizures since she was born. where her eyes become fixed and glossed over her mouth is open slightly and is completely unresponsive for thirty seconds or so. She also seems to be having trouble sleeping more and more she has always startled awake with arms fully outstretched and sometimes a horrific cry (scream). they have become more frequent to the point that my daughter holds her while she sleeps so that when she startles awake she is sometimes able to get her back to sleep. is this a different type of seizure? is there anything she can do for her to help her or decrease this she is scheduled for an eeg next week