Stainless steel milk pan 0.75l hand wash only (Westbury Fields BS9)

Stainless stell milk pan including the inside, it is 0.75litres with a couple of line markers inside the pan. It has been well used and put in the dishwasher. Unfortunately the dishwasher detergent has started to wear away the rivets on the outside of the pan that hold the handle on. The handle is still well attached and sturdy but I do not think I should be putting it inthe dishwasher anymore do I have replaced it. Looks like there is still some good life in it. Originally from Waitrose.