I have a read rash on my chest since friday morning. i was at a hotel since thrusday until saturday the rash is red and itchy

From : From the limited information in this post, it sounds like you had an allergic reaction/rash. If you still have the rash you need to be seen by your doctor for an evaluation, because typically an allergic rash will resolve over a few days unless you are continually exposed to the allergen. More history needs to be obtained to get an appropriate diagnosis. Best of luck.

Need to see to ID.: This rash would likely need to be examined and more history obtained to be able to provide you with useful input about the diagnosis or possible treatment.