Rashes can be defined as a significant change in the colour as well as the texture of the skin, which makes it bumpy, scaly, itchy and irritated. There are quite a few causes for rashes, which may include medications, allergies, use of poor quality cosmetics, and some diseases like measles and chickenpox. You would be able to treat most of the contact rashes but before that, you will have to know the reasons behind the formation of rashes. Doctors recommend using mild and gentle cleansers in place of strongly scented soap bars to treat rashes. Using lukewarm water instead of bathing with hot water also helps the healing process to speed up. You must allow the rash to breathe, don't rub it hard, pat the area to dry and if possible, keep the affected area uncovered. Limit the use of cosmetics and lotions as well since you are not sure if they are the ones that triggered the rash. You may apply unscented water-based moisturisers to the area, and scratching the area should be the last thing that you may want to do as it may aggravate the condition and make it even more infected. If your rashes have become very itchy and leading to utmost discomfort, then you may consider purchasing over-the-counter hydrocortisone cream for the area. Also, calamine lotions can help in relieving the rashes that arise from poison oak, poison ivy or chickenpox. You may also take an oatmeal bath as it would soothe the irritation and itchiness caused by eczema and psoriasis.