Help ‼️ what is this ?

stacy

My 6 year old has this red dot which at first was smaller than what the picture now shows. She’s had it for about a week now but today she showed me that it had gotten bigger. What could this be ? She says it doesn’t hurt but that it itches sometimes. I also found a tick on her back it was a small one that my husband removed as soon as we saw it. I’ll make a drs appointment Monday but In the meantime does anyone know what that could be ?