The Causes And Treatment Of A Non-itchy Rash
Most rashes itch, but not all of them do, and the subject under discussion here is the non-itchy rash. To understand why some rashes do not cause itching, one would probably have to look at what causes itching. By a process of elimination, it would be possible to say, that if the rash in question does no have any of the known causes of itching, that is why it is not a rash that itches.

Why No Itch

Things aren't quite that simple however. There is a very large number of things that can cause the skin to itch, with or without a rash being present. Furthermore, some of these things will cause itching in some instances and not cause itching in other instances. To complicate matters even more, things that can cause the skin to itch and a rash to develop on one person, may not have the same effect on another person, an allergy being a prime example.

All we are left with is a list of things that can cause the type of rash that does not itch, or at least usually does not. We still may not understand why that particular type of rash doesn't itch, but we can at least be thankful that it doesn't.

Acne And Keratosis

While teenagers are never happy about having to deal with a case of acne, they can at least be glad that the rash that acne can sometimes produce seldom itches. An acne rash can itch, but it is a rather rare situation when it does. Another skin condition, keratosis pilaris, also called chicken skin, is another type of a rash that doesn't itch. Keratosis pilaris is the result of dead skin cells clogging the pores, and then building up to from tiny bumps. Since there is no irritation or inflammation involved, there is no itching involved either.

Rocky Mountain Spotted Fever and Infectious Mononucleosis

There are two rather serious diseases that often have a rash as one of the symptoms, but in both cases it is a non-itchy rash. These two diseases are Rocky Mountain spotted fever, and infectious mononucleosis. Not all cases of Rocky Mountain spotted fever are accompanied by a rash, but when a rash does appear, usually about 3 days after the onset of the fever itself, it consists of small reddish or pink spots which appear on the wrists, ankles and forearms, and sometimes spread to the rest of the upper body. A second type of rash may appear a short time later, indicating the disease is in its latter stages. This second rash is also of the non itching variety. Infectious mononucleosis is sometimes, though not always, accompanied by a faint non-itchy rash typified by small bumpy red spots. This rash usually lasts for about a week. Another rash associated with infectious mononucleosis can be quite itchy and irritating, but it is not caused solely by the disease itself, but rather is caused by a combination of the disease and the medication being taken to fight the disease.

Other Diseases

Two skin diseases, rosacea and psoriasis, feature non-itchy rashes although in some instances the rashes can be itchy. There are a number of different types of psoriasis, so whether the accompanying rash itches or not will usually depend upon the type of psoriasis a person is affected with.


The type of treatment used for a given rash generally does not depend on whether the rash is itchy or non-itchy, although for an itchy rash a topical medication may be applied to relieve the itching. The type of treatment needed more often depends upon whether a rash is an infectious rash or a non-infectious rash. Non infectious rashes are usually treated with topical creams, or sometimes with pills, while the treatment of an infectious rash is usually directed towards curing or managing the underlying condition, the condition that caused the rash in the first place. For example, an infectious rash may be due to a fungus, due a virus, or due to bacteria. Obviously, treating a rash caused by a virus with an antibiotic is not going to be successful. It's necessary to know the cause, or the type of infection, before a method of treatment can be chosen.

The treatment of non infectious rashes can be quite complicated, particularly if the rash is due to an allergy, since the allergy is what needs to be treated if the rash is going to go away, and it can sometimes be a time-consuming process, not only to determine what the cause of the allergic reaction is, but how to prevent its repetition.

In the case of a non-itchy rash, most appear to be the result of an underlying condition, which is what needs to be treated. With a few fairly rare exceptions, a rash seldom presents any danger, and can in most cases be left untreated. Therefore, a rash that does not cause itching or any other form of discomfort, can often be allowed to go untreated, especially if it is known that the rash will go away on its own in a short time.