Strange “rash” whenever I’m ill

[u/TobyPearcepng]

25M

So whenever I get a cold, flu, Covid etc. I get a very strange rash on my hands and feet. The rash doesn’t hurt, nor does it itch or anything of the kind. It is a purely aesthetic problem, I’m not concerned by the aesthetics of it but I would like to know what exactly is causing this.

Thank you! Pictures in comments

[u/AutoModerator]

Thank you for your submission. Please note that a response does not constitute a doctor-patient relationship. This subreddit is for informal second opinions and casual information. The mod team does their best to remove bad information, but we do not catch all of it. Always visit a doctor in real life if you have any concerns about your health. Never use this subreddit as your first and final source of information regarding your question. By posting, you are agreeing to our Terms of Use and understand that all information is taken at your own risk. Reply here if you are an unverified user wishing to give advice. Top level comments by laypeople are automatically removed.

I am a bot, and this action was performed automatically. Please contact the moderators of this subreddit if you have any questions or concerns.