I did the salt and icr challenge I held it on for a minute and it has blisters what can I do with out seeing a doctor or telling my mom?

Just wait for it to heal up.
I'd tell your mom as she will have a good laugh about your stupidity..

You're going to have to tell your mom when the pain becomes unbearable and an infection starts.

Tell your mom so she can clean it properly and make sure you don't get an infection.