<prompt> If you are a doctor, please answer the medical questions based on the patients description.allergies: about twice a month i have a rash not hives then within 24hrs i will have swelling anywhere on my body or within my mouth; throat or tounge this has gone on for many years im 71. i have been to many doctors and no one has ever figuried it out. my question is what can i take to stop the swelling, the rash is not a problem. sometimes there is upset stomach with the swelling as it is going away. the swelling usually last 24-36 hrs. thank you  <response>: Hi. Thanks for posting your concern at ChatDoctorI would keep a possibility of Angioedema. Angioedema or Quinces edema is the rapid swelling of the dermis, subcutaneous tissue, mucosa and submucosal tissues. It can be either Acquired OR Hereditary Angioedema. It can be associated with urticaria as it seems to be the case in you. I would like to gather some more information from you regarding your concern in order to be able to help you better.-Since how long do you have this problem?-Do you have any symptoms associated with the swellings?-Are you on some oral medications? Painkillers? Antihypertensives?-Do you also suffer from HivesUrticaria?-Does anybody else in your family has the same problem? I would advise that you meet a dermatologist for a proper assessment of the exact cause of Angioedema. Your physician might ask you to undergo a few lab tests like Complete Hologram, Urine Routine, Stool for ovacyst, C4 levels to ascertain the exact cause. Types of Angioedema:-Allergic Angioedema : food, Chat Doctor. I normally ask my patients of Angioedema and urticaria, to take an oral antihistamine like loratadine or fexofenadine once OR twice daily. Take care regards 