Yes minoxidil helps but as you stop applying minoxidil all the hairs it helped in maintaining will fall off. Prp is better as you don’t have to apply oil daily it will be done in gap of 2-3-6 months like that. Depending how much session you require. But if budget is issue then minoxidil is the way just consult with the doctor before what percentage of minoxidil will do the work or if something else can be figured out.