Peeling fingertips

What did your doctor tell you? Technical support forums are not the best place to get medical advice.

You can also buy thin gloves that are specifically designed to be used with touchscreens.

That way, you can put lotion on your fingers, put on your touch-screen-ready gloves, and get your skin moistened all day without scrubbing any more skin off your fingertips.

I know someone who has the skin on their hands and fingers split and crack (worse during the Winter), but not the peeling of the skin or fingertips like you have. They don't know exactly the cause (washing dishes, cleaning chemicals, dry winter weather all contribute), but their doctor has prescribed them medicated cream to help heal the skin. They do need to be careful handling items since touching things can initiate a flare up or exacerbate a current flare up.

As the others have mentioned, you do need to consult doctors to determine the cause of the problem and what you can do to prevent it. You may need to at least temporarily use a glove (one which can activate the touch screens for the iPhone).

Don't touch it!

You can use a mouse or keyboard to move the pointer on your iPhone since iOS 13 (current version is iOS 16)

How to use a pointer device with AssistiveTouch on your iPhone, iPad, or iPod touch - Apple Support

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That is caused by scrubbing the skin on your fingers against the touchscreens. Not dangerous chemicals of EMF as conspiracy theorists would have you believe.

You need to get yourself a rolly-ball MOUSE, so that your fingers have a chance to heal.

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Helenloberg wrote:

its something I’m touching

Yes, it is! Not only touching, but scrubbing the skin completely off! Stop using touchscreens and trackpads right away and seek legitimate medical advice.

Screens and trackpads are made of glass, which is considered inert. (You are NOT being poisoned.)

Both the your devices have substantial built-in features that allow you to use Voice commands.

We recently had a new boiler installed, and the plumber, working on 3 inch steam lines on a ladder overhead said to his phone across the room, "Siri, message Jack and have him get me another length of 1 1/4 inch copper tubing."

For your Mac, use a rolling-ball mouse or similar device instead of the built-in trackpad.

I use a rolling mouse, and I use it in my non-dominant hand for a variety of reasons. My experience is that you can train your non-dominant hand to use a mouse pretty well in about a week.