It sounds like you have contact dermatitis. I have very sensitive skin and get this quite a bit.
Contact dermatitis - PubMed Health
My response might be too late, but HTH.
fine/med, dense, low porosity
low-poo: SM Curl & Shine, SM African Black Soap Shampoo
RO: One 'n Only Brazilian Tech Keratin Smoothing Cond.
leave-in: Giovanni 50/50 cond.
stylers: KCCC, KMFUM