You could try refined if you want to continue to use coconut oil on your hair, that will contain fewer 'impurities' like protein molecules which you might be sensitive to. But rather than blindly self treating it would be best to simply get a formal diagnosis. I like Waterlily716
as a curly 'guru' but she is no dermatologist.
2a-2c, medium texture, porous/ colour treated. Three years CG, growing out mechanical and chemical damage = breakage and very high porosity. Past armpit length heading for waist.
Treatments: Komaza protein, Komaza Matani, coconut oil with sugar syrup. Hairveda Sitrinillah
Leave in: Fructis Sleek & Shine (old), Gliss ultimate volume
Styler: Umberto Giannini jelly, Boots curl creme, Rockin RInglets
Experimenting with: Mega-Tek, Curl Harmony reviver, Elvive Full Restore 5.