Question: I am taking antihistamines for urticaria; I also had rosacea on my chest a few years ago. So, I'm curious about why my chest is red again. I was staying in shade and carrying a parasol, but it looks like I got red from sun, since where my straps were it is white. Could I have a red chest or sensitivity to sun there due to my hives? or if it's just red (but never hot) could it be rosacea? thanks

Thank you for answering. The thing that makes me doubt that it's a sunburn is that I noticed the redness over 10 days ago, and it just stays the same. Some parts of the day it looks redder than others, but it never goes away entirely. It's true that because I was covered with rashes and worried about the cause, I was for a few weeks not putting anything on my skin, like sunblock. I usually have at least 45 sunblock there. and even during those few outings, we sought the shade and I always carried a parasol. Neither my face nor arms got any color, jus that neck/chest area.
A doctor that was removing my stitches at UCLA said that he thought it was years of sun exposure as a child finally appearing. But that sounded strange - like quite a coincidence that it would be during my urticaria weeks to finally decide to appear! And since I hardly every wear a uneck top, why would it after all these years take the form of that uneck?

So, that's why I was leaning to a reaccurence of rosacea; but if it is "years of sun finally appearing" will it fade back to the color it usually is? And will it hurt me to use my rosacia cream (finacea) in the meantime?

Thanks again!