How to use Cannabis for my Epileptic child

My daughter's age is 4 years and 7 months. She was diagnosed with Epilepsy at the age of 1 and she has been taking Epival (500mg) Tablet ( 1 in morning and 1 in evening) and Lariase (5ml morning and 5 ml evening. She is now fitz free from past 6 months but the doctor said we need to continue the medicine for 2 more years. According to her doctor she has to be fitz free for 2 years. But the doctor decreased Epival dosage ( 250mg morning and 500mg evening) because of the side effects. Following were the side effects found in tests. The readings of the report are as follows. Thyroid T3 Total 0.99 ng/mL Desired Limit: 1.19-2.18 T4 Free 0.91 ng/dL Desired Limit: 0.70 - 1.48 TSH 27.50 uIU/ml Desired Limit: 0.85-6.5 Valproic Acid 145.31 ug/mL Desired Limit: 50 - 100 Serum Total Calcium 7.9 mg/dL Desired Limit: Adult: 8.4 - 10.2- Children: 7.6 - 11.0 Platelet Count 59,000 /mm3 Desired Limit:150,000 - 450,000 Glucose (Random) 77 mg/dL Desired Limit:80 - 200 Sodium 137 mmol/L Desired Limit: 136 - 145 Potassium 4.3 mmol/L Desired Limit:3.5 - 5.3 Other physical side effects are as follows. 1. She is gaining weight, over all body swelling (minor) 2. She is complaining about the pain in knees. 3. Her right foot slips or gets imbalanced and she fells down.It sometimes happens only after few steps. 4. She would not move forward after stepping few stairs Currently she is having these medicines 1. Epival divalproex sodium (25mg morning, 500mg evening) 2. Lerace (Leveliteracetam) 100mg/ml( 5ml morning, 5ml evening) 3. Iberet 500 Liquid - Iron, Vatamic C & B Complex - 5ml evening) 4. Multibionta syrup - A, C, D & B Complex - 2.5ml morning - 2.5ml evening I have RAW Cannabis flower (bud) in the following forms. 1. High THC (25%) & High CBD (23%) (Strain:Super Critical CBD by Garden of Green ) 2. HIGH CBD (20%) NO THC (Strain:Dr Seedsman by Seedsman) 3. HIGH THC (20%) No CBD (Strain:Phantom OG by Barney's Farm Seed) My request is to guide me thourgh: 1. What strains from above mentioned should i choose? 2. How can I make a medicinal infused cannabis oil? 3. How to select the correct ratios of oil and flower combination etc? 4. What dosage should I give her as medicine for curig Epilepsy? 5. Once I start the dosage should I stop the medicine mentioned above if not then how to reduce the medicine? 6. What procedure should I follow to make a safe application for her?(she is just 4.7 years old) as I don't want to take any risks. Your valuable comments and suggestion will be highly appreciated. A concerned father