I think my friend might have lyme disease?

So I’m going to start this story by saying I know absolutely nothing about lyme disease, or any other diseases for that matter. I’m not sure if this is the correct place to post this but my friend was telling me about her problems the other day and I don’t know if she needs to see a doctor, so I’m hoping you guys can help me out. <br><br>My friend (22f) has a rash on her arm (right arm), she said it came out of no where and has been there for over a week now. The rash is red, and I could see some lines going across the rash, but it’s also pretty small. She also said she had a really bad headache the day it started and she’s had headaches for the past week or so. I don’t know if you can catch a disease just by touching someone, but she has a habit of touching her face, so that’s what I’m worried about. <br><br>I don’t want to scare her but I think it would be a good idea if she went to a doctor just to be safe, and I’d love some input from people who actually know what they’re talking about. <br><br>I hope I didn’t mess up the formatting. I’m on my phone so I can’t see it well. Thank you for reading.