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Can allergies cause small amount of blood in phlegm in the morning

A 31-year-old male asked:
Dr. William Culviner
30 years experience ENT and Head and Neck Surgery
Take notice: A little blood in your mucus which is related to allergies is not too unusual. However, this is something you should watch. It might indicate that the ... Read More

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A 42-year-old female asked:
Dr.
A Verified Doctor answered
A US doctor answered Learn more
Not a usual thing: This needs to be checked out to find the site where you lose blood from
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Dr. Al Hegab
Dr. Al Hegab answered
40 years experience Allergy and Immunology
Not really : Some blood tinged mucous or phlegm in the morning in people with allergies shouldn't be worrisome, due to inflammation, dryness, nasal sprays or the l ... Read More
A 33-year-old male asked:
Dr. Amrita Dosanjh
36 years experience Pediatrics and Pediatric Pulmonology
Cool air mist : Humidification of air improves clearance of mucus from the airway. Please avoid smoke and see your physician to discuss ruling out malignancy.
A 29-year-old male asked:
Dr. Martin Raff
56 years experience Infectious Disease
See a doctor: It sounds like you have seen doctors. How you can be sure you do not have an allergy is beyond me. Suggest that you try nasal saline rinses twice a ... Read More
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A 28-year-old female asked:
Dr. Robert Greer
44 years experience Family Medicine
Hope it is sinus: You are young(27) for more dangerous causes .See your dr or ENT because we always worry about blood in any body excretion.
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A 25-year-old male asked:
Dr. Robert Isaacs
39 years experience Family Medicine
Get it cleaned: Previous owners may have pets or there may be dust or other allergens there that are triggering your symptoms. Get the carpets and drapes steam clean ... Read More
A 17-year-old male asked:
Dr. Charlene Sojico
41 years experience Pediatrics
Spitting out: Small amount of blood is ok due to irritation in the nasal mucosa. Colds, flu, allergies, sinus congestion can be a factor.Blowing nose hard and picki ... Read More
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A 38-year-old female asked:
Dr. Bernstein Joel
60 years experience ENT and Head and Neck Surgery
Need diagnosis: Brown phlegm is probably not from the oral cavity or from the gums. Obviously, you need a proper diagnosis. Although you say there is no nasal bleed ... Read More
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A 35-year-old female asked:
Dr. Heidi Fowler
25 years experience Psychiatry
Can't make diagnosis: with available info. History, blood work, Chest Xray and physical examination would determine accurate diagnosis. Take care.
A 27-year-old female asked:
Dr. Amrita Dosanjh
36 years experience Pediatrics and Pediatric Pulmonology
Location: If the source of the bleeding is limited to the upper airway and due to brief nosebleeds, control the nasal bleeding with pressure on the bridge of th ... Read More

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