Alopecia Areata in 4 Year Old

My daughter who is 4 years old has been diagnosed by doctor has having “alopecia areata (AA)” . I am really worried about her treatment.

She is being given
a)Minoxodil Topical Solution USP 2%
b)Prednisolone Sodium Phosphate Suspension- Omnacortil suspension- 5m/5ml
c)Tretinoin Cream USP- Retino -A 0.025%

is this a good medicine or any new development has been done in this year 2005? please do let me know if any thing else can be done to get my daughter treated permanently

Doctors who treat Alopecia Areata have a particular interest in this disease. This appears to be a standard treatment for this disease, but this is a highly specialized field and I would assume that your doctor is fully in command of the treatment.