I have red spots on my lower legs. what could be the cause?

Some possibilities..: Rashes are difficult to describe in words. A primary care doctor or a dermatologist can examine a red spots rash to see what it might be. Sometimes rashes are related to medications, but many times they are not. For unusual rashes, a skin biopsy may be done by a dermatologist. Other causes include viral infections, allergies and autoimmune reactions, chemical irritants, bug bites, etc...

Unsure: 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.