Worried about the overdose of Minoxidil Topical Solution Coverit 5%. Will overdose result in hair loss? (Photo)

Got my hair transplant on 9th March, 2016. Approx 3500 grafts. I followed every instruction religiously. Reason I am worried is because I was suggested to apply the above mentioned solution 2ml twice a day but I was applying slightly more than 2ml. I observed acne on my forehead but since 4 days I have reduced the amount and the acne disappeared. Can overdose of the solution result in a permanent transplanted hair loss? Left side of the head has lost some transplanted hair as compared to right.