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

### input:
I m a 53 y.o. female.Living in Louisiana .. Meds: Atenolol (BP), Prilose( GERD )c; nasonex , clarinex. Carry an epi-pen and use benadryl or zyrtek prn. Had complete hysterectomy in 1998; tonisllectomy 2005. Recently diagnosed with Type 2 diabetes (July 25, 2012) and took diabetes meds for a month with great results and meds were d/c d (oct 4) after a one month med vacation (from Tradjenta -sept 4).I have extensive food and medication allergies and intloerances. Food allergies include cayenne (muscle weakness), nectarines (anaphylaxis), black pepper (facial rash);oranges (itchy welts). Intolerances include milk, blueberries, cinnamon. Some foods cause itching with no rash (but require benadryl and last for about 8 hours--like tuna). Med allergies include biaxin, penicillin (rash), neurontin, lexapro,cardura- all of which make me itch; codeine (vomiting). I have been following a portion-controlled diet of 1/4protein,1/2 non-starchy vegetable and 1/4 carb at each meal.. and have lost about 25 lbs since getting the diabetes diagnosis. I cannot pinpoint the source of this itching.I recently had scratch tests for wheat, garlic and bell pepper--all negative. I do know that the smell of certain spices and seasonings make my right ear (which always feels congested) feel full until I put a cotton ball in it. Question: For the past 3 weeks or so, it seems that if I am hungry (empty stomach) or thirsty, I start itching...not sure. Still trying to pinpoint exactly when it happens..but face gets itchy, then it moves to the lips or nose or head or arms or palms or feet or ear or throat or eyes might get dry and itch a bit around the edge of the lids..It (the itchiness) moves around. It does not last long (maybe 1-5 minutes in each place). Don t know if Ishould j ust treat the itch, ignore it, or continue to look for a cause for it.

### output:

Hello, Your food allergies come under salicylate intolerance and some foods (very high in salicylates) can cause itching but no rash. Vomiting to codeine is an intolerance and unrelated to the food allergies. You could have urticaria and just like diabetes (autoimmune condition), you should get a complete blood count, TSH profile done with TPO antibodies to exclude a thyroid disorder. It quite often co-exists and a TSH alone is not sufficient to find this autoimmune hypothyroidism state. Long acting antihistamines and thyroid treatment (depending on results) could lead to much better control of symptoms. Thanks.