### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
Around 10 weeks ago I was bitten on my legs by some common gnats (in the UK). Both legs became very swollen and itchy and I became itchy on my upper body also. I was advised to take anti histamines (ceterizine hydrochloride) and prescribed flucloxacilin. The problem persisted and I was prescribed a different antibiotic (can t remember which) and piriton. After two weeks of antibiotics the problem seemed to subside. 10 days after this (about two weeks ago) the itching returned. The original bites on my legs have still not healed and the itching has spread to my palms. The soles of my feet are also very tender and I have had bruised heals for awhile. My hands and fingertips are also very tender and sore. I am now taking fexofenadine which I have been on for about a week. I have had results from a blood test during this and my GP feels it is a ongoing reaction, not an infection. I am, however, becoming increasingly concerned, particularly now as the fexofenadine is not helping. Thank you for your help!

### output:

Dear Sir/Madam have gone through your query and read your symptoms. In my opinion, this certainly is reaction and talk to your GP regarding the prospect of using a short course of steroids, as this is what we usually do, but for that he will have to see if there is any contraindication of its use in your case, moreover the body will try managing with it but be careful of the fact that sometimes body over responds to the allergy and cause damage to itself. I hope that answers your query. If your want any more clarification, contact me back. Chat Doctor. 