Son has sensory processing disorder

Kiki

Any moms out there dealing with a child with sensory processing disorder? I feel like after my son (1 1/2years) defeats one issue or acclimates to a sensory need another one forms. Lately he has formed an issue with being wiped. He used to giggle when I'd clean his diapering area now he screams and runs. Has been checked for rashes, adhesions from circumcision and all of that. OT suggested another sensory issue developed. Any moms know how to help me ensure he is clean down there without an episode? He head bangs on the floor and goes into behaviors during this process and I'm so gentle.