How To Increase Thickness Of Hair While Suffering From Alopecia Areata?

Hi doctor,
I am venkat, age-30, & height-173cm. I got alopecia areata(round bald patch) at one area on the scalp. Iam facing this for the past 2 months and my doctor gave corticosteride injection(Triamcinolone acitonide) - 10 shots arround the scalp with .1 ml dosage at each area. Also he prescribed some creams such as tracolimus cream and betamethasone cream and also some tablet for supressing the WBC effect for 1 month course.I found some hair growth in the affected area but it not normal like other hairs.
My Querry: How to increase the thickness of the hair and how many months it will take to get my normal hair back.Also please tell me till how many months should i continue the medication.