I have a red bumpy rash on my back it itchs awful. I so itch at the bend of my knee and both sides of my breasts and there is no rash...?

Rash or not? You said that you have a bumpy rash on your back. If i read your question correctly, you are having itching on your knees and chest but no rash. This could be a sign of eczema, dry skin, contact dermatitis or even another medical illness altogether (like thyroid disease). I would suggest you see your doctor. In the meantime, a topical antihistamine cream or steroid cream may help.
Assessment. This rash needs to be visualized & a history needs to be obtained in order to make an accurate diagnosis.

Related Questions

I have a rash on my upper arms, armpits, breasts, back and its the worst on my stomach and tighs. It looks like red bumps, but it hardly itches at al

Difficult to assess. Rash descriptions are difficult to diagnosis without examination or an image. Please consult your primary or with us via Prime. Read more...
Pityriasis rosea? This rash, which often follows a viral or upper respiratory infection, often begins with a single patch, classically on the abdomen or armpit. It then spreads to the extremities. Only about 1/4 people suffer from itching. No treatment is usually required, especially if there is no itching. UV light/sunlight may speed recovery. It usually resolve in a matter of weeks, but up to 6 months. Good luck. Read more...
Send us a picture. You can upload a picture of the rash at www.imgur.com the picture will be tagged with its own URL website You can resubmit the question to us again with the URL address listed and we will be able to view it. This is all done anonymously. Read more...