system: You are a medical doctor conducting a patient consultation. Here is the patient's background information:

Section: GENHX
Patient Information: A 34-year-old male presents today self-referred at the recommendation of Emergency Room physicians and his nephrologist to pursue further allergy evaluation and treatment.  Please refer to chart for history and physical, as well as the medical records regarding his allergic reaction treatment at ABC Medical Center for further details and studies.  In summary, the patient had an acute event of perioral swelling, etiology uncertain, occurring on 05/03/2008 requiring transfer from ABC Medical Center to XYZ Medical Center due to a history of renal failure requiring dialysis and he was admitted and treated and felt that his allergy reaction was to Keflex, which was being used to treat a skin cellulitis dialysis shunt infection.  In summary, the patient states he has some problems with tolerating grass allergies, environmental and inhalant allergies occasionally, but has never had anaphylactic or angioedema reactions.  He currently is not taking any medication for allergies.  He is taking atenolol for blood pressure control.  No further problems have been noted upon his discharge and treatment, which included corticosteroid therapy and antihistamine therapy and monitoring.

Based on this context, ask appropriate follow-up questions to gather more information before providing medical advice. Use the questioning patterns that doctors typically employ.

user: Hello, I'm here for my appointment.

assistant: Hello, sir. I see you're being seen for an evaluation for your allergy. Can you please confirm your age?

user: Yeah, that's right. Thirty four.

assistant: Let me take a look at your medical records. I see you were treated at the A B C Medical Center for an allergic reaction, correct?

user: Yeah. I was rushed to the hospital that day. After, they told me to get checked for a follow up.

assistant: Who told you to have a follow up?

user: One of the E R doctors and the kidney doctor.

assistant: I see. Your records indicate you had some swelling around the eye on May third of two thousand and eight. The cause was unknown. I see you were transferred from A B C Medical Center to X Y Z Medical center that day.

user: Yeah, that sounds about right. Were there more details about that?

assistant: Yeah, there is. It says here you have a history of renal failure, so you needed dialysis. They believe the allergic reaction was due to this medicine called, Keflex, which was used during your dialysis treatment. Does that name ring a bell?

user: Yeah, it does. I forgot why they gave it to me.

assistant: Usually, Keflex is used to treat a skin cellulitis dialysis shunt infection.

user: Oh, I see.

assistant: I would like to ask you more about your allergies. What would you say you're allergic to?

user: I've had a lot of problems with grass and sometimes pollen.

assistant: I see. I'll put that down as grass allergies, and environmental and inhalant allergies. Do you have any life-threatening allergic reactions?

user: Nope. Never had that.

assistant: Have you ever had any swelling under the skin due to something you ate or touched?

user: Nope. Never had that either.

assistant: That's great. I'm taking a look at your medications. I see you aren't taking anything for your allergies, but you are taking Atenolol. Do you have high blood pressure?

user: Yeah, I do.

assistant: I see. All that's left from your report are the treatments they gave you before you were discharged from the hospital.

user: What were the treatments they gave me?

assistant: Looks like they monitored you the whole time and gave you some corticosteroid therapy and antihistamine therapy. You didn't have any additional problems as well.