Should i see a doctor about this bugbite/rash?

i am more allergic to insect bites than the average bear. a bite typically turns into a nickel or dime sized welt for several hours, then becomes a large red bump for a week or two before going away. this particular site is roughly dime sized with an indentation in the middle surrounded by a rash 1” wide. from the top of the site, there is a red, slightly raised line extending 4”. towards the top of the line is a small bump. i have never seen a reaction like this before, but am not convinced that a doctor visit is necessary. i have had it 4 days with no discernable changes. i have applied cortisone, witch hazel, calamine and caladryl lotions.