You have not described the location , type, size, presence of any other associated symptoms and signs like pain, redness or tenderness in the swelling, fever, whether any urinary symptoms are present or not. Without knowing all these, it would be difficult to comment on the cause of the swelling.
There could be several causes for rashes and itch such as hives, insect bites, dermatitis, psoriasis or any allergic reaction. You should also let us know since how long this rash is present. Does your friend have any history of allergy?
Hives or urticaria is an allergic condition which causes red and sometimes itchy bumps on your skin. Hives can occur anywhere on the body such as the trunk, arms, and legs.
They are usually allergic (food, medication and insect stings) but may also be due to infections and stress. Many a times no specific cause for them is ever found.
You may try some OTC antihistaminics (such as cetirizine, loratidine, benadryl). You may try calamine lotion locally which has a soothing effect. You need to maintain a good personal hygiene and thoroughly wash several times daily. If the rash or swelling persists, I would advise you to undergo a consultation with your GP.
Copyright 1994-2018MedHelp.All rights reserved. MedHelp is a division of Vitals Consumer Services, LLC.
The Content on this Site is presented in a summary fashion, and is intended to be used for educational and entertainment purposes only. It is not intended to be and should not be interpreted as medical advice or a diagnosis of any health or fitness problem, condition or disease; or a recommendation for a specific test, doctor, care provider, procedure, treatment plan, product, or course of action. MedHelp is not a medical or healthcare provider and your use of this Site does not create a doctor / patient relationship. We disclaim all responsibility for the professional qualifications and licensing of, and services provided by, any physician or other health providers posting on or otherwise referred to on this Site and/or any Third Party Site. Never disregard the medical advice of your physician or health professional, or delay in seeking such advice, because of something you read on this Site. We offer this Site AS IS and without any warranties. By using this Site you agree to the following Terms and Conditions. If you think you may have a medical emergency, call your physician or 911 immediately.