I bet the americans in this thread can get way better numbing cream than here in the UK.
Best I could find is this stuff:
https://www.ebay.co.uk/itm/38-10g-2...Anesthetic-Numb-Cream-Permanent-/202442875228
Works great on forehead and cheeks (used these areas as test spots) and id say reduces temple pain by about 30% and crown pain 40% but you can certainly still feel it and it does still hurt.
My routine is:
Numbing cream
1 Hour later shower with Nizoral
Derma pen 4 passes total (two horizontal two vertical)
Kirkland minoxidil foam one cap full roughly, just once on that day
Kirkland minoxidil as usual twice a day the following morning
Repeat derma pen once a week on Sundays