try below easy fixed, i used to have bad dandruff, solve by sleeping early 10pm. And sensitive skin cause by to much and harsh wiping of sweat while working out in gym ,solve by below cream but on and off will return if i stay up late (2-3am) for 2-3 days in a row.

(spelling might be wrong):

benovate N cream - for sensitive skin, this contain some steroid stop using when symptom stop. put mild thin layer enough.

h-cord - middles cream for sensitive skin also contain steroid. change to this when not that serious. also thin layer or problem spot

Sleep more and earlier - lack of sleep or stress life will cause sensitive skin and dandruff too.