WHAT IS THIS!? )Pictures(

what is this was itchy for a day then this happened!

Have you recently had unprotected penetrative sex?

yes a week ago with the same partner with no problems doc says its 3 infections yeast and 2 others and gave me cream for this

So, you need to sort out the infections and see whether the penile skin can fully recover from this.
How long have you been using the cream, have you been asked to report back to the doctor at any time?
You can further help your penile skin by not using soap and things like shower gel, if you masturbate at the moment, certainly do not apply anything to the skin, better still, take a break from this and your skin has a better chance to recover more quickly. Use water only to clean the penis with, draw the foreskin forward to protect the head of the penis when your shower, rinse all cleansers off at the end of the shower from the rest of your body, then expose the head and inner foreskin, wash with water only, when you get out of the shower dry this area first with a clean dry towel that only you use, by patting it really carefully until completely dry.