hello! i was bitten by a tick on my right ear at the start of september. i think it was on me for quite a while too. then two days later another tick bit me on the same ear, though at a different spot, and was on me for a shorter while. because of this i got two swollen lymphnodes for around 2 weeks and they hurt really bad. now, however, the swelling has gone down and it doesnt hurt at all. but, the spot at which the first tick bit has been swollen (kind of like a lump?) ever since the day after it bit me, and it is itchy. why does this happen? should i be worried? [note: i have been allergic to all sorts of animal bites like mosquitoes and fleas since i was little so could this be an allergy?]