A cup shattered and cut my hand on the palm several hours ago. The cut is about between an inch and inch and a half long,. I got it to stop bleeding but there is no clot. The wound is still open several hours later. I have sprayed anti septic spray and covered it. Can I get away with changing the plaster/covering twice a day or do I need it looking at? I'd rather not go to a and e if I can avoid it but obviously want it to heal properly.