Help! Took a Ryan Air flight 5 days ago, then stayed in a hotel, two days later I have one red mark back of thigh and two pimplely ones on front of thigh. Last night it was raised no head, today it has a white head. The redder one is completely flat now but maybe getting bigger. They don't itch. I have come out in a stinking cold too. Scared of scabies! Looked for bed bugs but couldn't see any. Went to a house with cats.