[mantas]

IIRC 20-30% is for the picturesque classic bullseye. A small amount of cases have no skin indication at all. And the rest get various other rashes. Maybe circley without gradient, maybe bullseye-ish square, maybe just a random redness. Itchiness may or may not be there too.

Personally I had Lyme twice. Neither was 100% bullseye. The first that I let stay for a while before realising what is going on had little bullseye-ish gradient and was a perfect circle. It took some time to develop the gradient. Next time I realised what is going on very early and all I had was a red patch. I don't know if it would have developed the pattern if I didn't take antibiotics literally the next day after little redness appeared at the tick bite location.