Stock band and irritated skin after few days of wearing

Adding pics on how this looks like

General advice would be to clean band and wrist regularly, making sure both are dry before wear (which is why it’s a good idea not to shower with the watch, or damp occurs underneath).

Try not to wear it too tight, experiment by loosening. Consider wearing a nylon band. There are lots of aftermarket options available online (Amazon etc).

I set a daily alarm on my watch to change it from left wrist to right overnight, that way one wrist isn’t constantly in contact with the band.

Some people seem to have an allergy to the normal one and switching to the nylon strap helps.