Infection due to using a mixture of salt and lemon to remove my tattoo. Any suggestions?

Hi , I had a tattoo in my hand and i used salt and lemon mixture together to remove the tattoo as home remedy. I rubbed mixture over the area where i had tattoo. now i think it's penetrating my body over the area very deeply. this might lead to an infection. So, do you have any medicine or suggestion which i can use to avoid it. Please assist me on this . this is very urgent.