I am on vacation in Naples, FL and have 21 mosquito bites. They have become welts and one in particular, on my left inner elbow is swollen, red and warm. I have had the bites since Sunday eve and have taken Zyrtec, and Benadryl at varied times. Ice packs, Itch spray and an assortment of topical home remedies. Should I be concerned about these, enough for a visit to a mini clinic?