Part of Scale being rough

Hello. My one and a half years old Gold Dust Corn Snake's scales is rough and unusual (part of it, not the whole body), I just realized it this morning. It has been eating fine, but very active recently, it's active even during the day when usually it will be active during the night. Its last shed was last month (a complete and full shed, I made sure there wasn't any stuck shed on its body the day after it shed). I asked my local reptile store for help, they think it's stuck shed and recommended me to give it a warm water bath everyday for 15 minutes until that patch of rough scale is gone, and also to clean the enclosure.

The rough scales part is located at my corn's upper front part (near the head), it's not smooth as usual, and the scales are like spiky and standing. The mice it eats are all frozen mice so there's no way it could be an injury from the mouse it ate.

May I know what caused it to be like this? And how can I treat it? Any help would be appreciated. Thank you! :eatpointe

Sometimes they just rub against something that lifts the scales a bit. Especially with him being more active, that's probably the most likely explanation.

Ah. So it's not dehydration or anything? I don't need to do anything? Should I check its scales again a few days later? Thank you!

It doesn't look like dehydration to me. Dehydration will have more of a wrinkly look, like pinched skin along the sides. And as long as he has regular access to clean water, he shouldn't be dehydrated. I would expect it to go back to normal after the next shed.

Sorry for the late reply, and thank you so much!!