Hi Dear , Welcome to HCM. Understanding your concern. As per your query you have bad hives on neck and face and along with that pressure in ears which could be due to environment , heat , cold , pressure and sun exposure . It is the bodies response to the trigger factor . Insect bite , pollen and some plants can also cause hives . Purple color on gums could be due to accumulation of blood under skin leading to blisters. I would suggest you to give cold compresses to hives several times a day to prevent from swelling and itching and take over the counter antihistamine drug like benadryl. If symptoms still persist the consult dermatologist for proper examination and treatment. Doctor may prescribe other steroid cream mometasone , anti inflammatory drug or drugs that can suppress immune system. Doctor may perform skin test and challenge to find out the trigger factor. You should stay in cool environment. Hope your concern has been resolved. Get Well Soon. Best Wishes, Dr. Harry Maheshwari