Fortunately, someone just using the pads of their fingers (not their fingernails) to firmly massage their scalp (not specifically rub their hair) won't hurt their hair. Instead, it'll remove oil, dirt, and dead skin from their scalp; plus it'll stimulate blood flow to the scalp. All of that is beneficial to the hair.
It's using products with stuff like sulfates in them that risks doing more damage to the hair because of how drying it is.
3b / Fine / Low (to Med) Density / Normal Porosity & Elasticity
Currently Using [*Holy Grails*] Cleansers:
DC No-Poo / DC Low-Poo / *BaSo & ACV
CJ Beauticurls Argan & OO / DC OneC / Organicals DC Creme
Additives: *Silk Amino Acids* /
Honeyquat / Fragrance Oils
KCKT / CJ Beauticurls LI / CJ Curl Assurance Smoothing Daily Condish
DTs: *Coconut Oil* rinses
, EVOO, & DC OneC / CJ Curl Rehab
*DM Super Buttercreme
Goal: APL Hair