First and foremost, please donít make it your mission to gain the acceptance and approval of others (whom you donít know and donít know your child, by the way). You know your child best and others donít. I know how those staring eyes and disapproving facial expressions can make you sweat and even want to run when youíre outside of your home with your screaming child. Believe me, Iíve been there.
But, your focus is your daughter. She has sensory hypersensitivity or hyper-responsiveness to sound and visual stimulation. With that said, get your headphones, buds or whatever in her ears when youíre out in a place that you know is going to be painfully loud. That is, give her your iPad, phone or childrenís tablet so that she is watching a video or playing a game in a public setting, and set it up before you go into the mall or store. This will give her something familiar and predictable to focus on and listen to while she is acclimating to the new environment that she is in. When she is ready, she will look up and beyond her video and slowly take it in at a pace that she can. Otherwise, your daughter will anticipate the loud sounds and sights, which will get her screaming before you even open the doors.
So, I know I didnít exactly give you the advice you were looking for, but my advice is to build the accommodations in the environment and give her the strategies to help her cope, instead of focusing on others and their reactions to your daughterís sensory needs. Nobody understands her sensory profile, and you wonít be able to give a lesson to help others get it. You donít have enough time in your day to do that! People will judge no matter what. If you are in the presence of another parent, they wonít judge you because theyíve been there. Maybe not with a child with sensory processing difficulties, but everyone has experienced the temper tantrum in the most inopportune place and during the most inopportune time. Itís okay. Let it go. Worry about you and your daughter. Maybe the strangers around you will get it, and maybe they wonít. Thatís their problem!