No. Unfortunately, we're talking about two different things. I'm talking about the rash that occurs below the knees and above the ankles. It's a vascular thing caused by blood flow or some such thing.
If it's truly vasculitis, then no, not much you can do. It usually hits those women who are over 40, fair skinned, and overweight. Now, I'm 5'8'', run about 155-160..and I get it every time I go in warm/hot weather. But, in Dec this past year, I also got it!!! If I'm on my feet for long periods of time, with little off feet time, then the legs get red and yucky.
Good thing is that within 3 days of being home and off the feet, the legs are fine.
Yes, there is a rash that is associated with the sun and reflection off the pavement. And this is going to respond to sunscreens, and other ointments. But if it's vasculitis, nothing you put on, topically, will affect it. It is coming from under the skin. It's a circulatory thing.
Some have referred to this as thd 4F rash...female, forty-plus, fair skinned and fat. I have to take issue with the 'fat' componant!!
OH, and another thing. Various medications can make this a lot worse. I suffered hugely from this vasculitis during the late spring through mid-fall times in WDW. For years I talked to my doctor about it. She kept telling me it was psoriasis!! Ah no. I finally went online, printed out an article about 'golfers vasculitis' and showed it to her. She was amazed. Then she whipped open my file and told me that the Norvasc I was taking for high bp listed vasculitis as a side effect!!! Seriously??? So, we changed my meds to Diovan, and while I still get the vasculitis occasionally, it is much less severe.