Very hot home button - Phone won't turn on

Hello,

I've had my iPhone 6s for ages now and have had no problems until today when it turned off by itself. When I realised this I tried to turn it back on but it was unresponsive.

I had plenty of battery power prior to this, and was even using it to take a photo just minutes before. I put it down for a few minutes, came back to it and it felt that the home button was extremely hot and the phone wouldn't turn on. It has been 2 hours now and still no luck turning it on, and the home button is still hot.

I've googled this but can't find much information on how to fix it, just that others have had this problem too.

Is there any information you can give me to help me fix this? I would hope going into an Apple store for a replacement would be my absolute last resort, but if that's what I have to do then so be it.

Thank you,

Elizabeth