Small Dots on skin on arms. It out*.

Small small Dots on lower back shoulder appear during whole summer season...and disappear during winters but marks remain on winters also...these first appear 4 years back but then they were more prominent and serious but ever since then they appear every year in summers and are silent in non summer seasons...but...the marks apper whole year no matter the season...marks never go... sometimes these are itchy but mostly they are non itchy...4 years back when they first appear they were in huge amount and were treated saying they were of fungal infection...but I don't understand why they don't go away...I maintain high hygiene and everything and I don't itch them for no reason...I don't do anything that triggers them...but still they appear every summer on arms in these amounts...not sure what to do...a permanent treatment would be very appreciated cuz I'm seriously tired of these dots. *I ATTACHED A PHOTOGRAPH of this for better understanding...Do check it out*. Thanks! ❤️