Do you have a runny nose even out of the cold and flu season? Or constantly suffer with a cough or itchy and watery eyes?
You may be allergic to the faeces of hundreds of microscopic dust mites living in your pillow, scientists claim.
It's widely known that many of the millions of dead skin cells we shed every day accumulate in our beds.
But if your pillow is two years old, 10 per cent of its weight could be blamed on dust mites and dead skin cells.
As if that wasn't enough enough to make your skin crawl, its the mites poo, not the mites themselves, that people are allergic to, according to The Hygiene Doctor, Lisa Ackerley.
Dr Ackerley said: 'Mites themselves don't carry disease, it is an enzyme in the poo that some people are allergic to.
'If people have asthma, it can make it worse. It can also give you a constant runny nose, itchy eyes, watery eyes and cough.'
Yet, while the symptoms may be unpleasant, mites don't pose any serious health risks.
And, unless you're suffering symptoms, no action needs to be taken, Dr Ackerely said.
'If it is not bothering you then it is fine, but if you are having problems with your health then you should do something,' she added.
'Don't make the bed in the morning because mites like the warmth, so if you pull the sheets back it creates a hostile, cold environment for mites.
'Wash your pillow and then tumble dry it to fluff it up, the heat from the dryer kills them.
'You can even pop the pillow in the freezer to kill the mites ? if you have space.'
Avoid drying clothes on radiators because the moisture makes your home more friendly to mites, she advised.
While keeping your house slightly cooler and vacuuming dust up will help to prevent any unwanted illnesses.
Dr Acklerley also told The Sun: 'The cleaner you keep your house the less dust there will be so the less there will be for the mites to eat.
'When you are doing the laundry, you really need to try and put it on a 60 degree wash to kill the dust mites.'
11 Realistic Methods of Stress Management
The Best Breakfast Foods for Weight Loss
5 surprising beauty benefits of amla
6 Best Oils for a Naturally Clear and Glowing Skin
Try these 4 simple yoga asanas to gain weight
Those who consume fruit and vegetables have a 40% lower risk of an incurable lung disease
Combat the Cold with Fresh Oregano Tea
15 Powerful Asanas of Yoga to Reduce Belly Fat
★Expert reveals the snacks you should eat, according to your body type
★Yoga Heals More than Just Your Body
★Acne sufferers likely to live longer than people with flawless skin
★Smoking and sight loss warning
★Eat more fruit and veg for a longer life
★5 Common Mistakes that May Ruin Your Skin
★8 Fruits that Burn Fat: Include Them In Your Diet For Great Health Benefits
★Can high heels give you cancer?
★Teenagers use social media posts to appear attractive to friends
★The Brilliant Food Combo That Helps You Burn More Fat
★Work stress may lead to irregular heart rate
★This One Exercise Helps You Become a Better Runner
★10 Healthy Twists on Classic Diner Dishes
★Correlation Between Almonds and Weight Gain
★The Benefits of Yoga Beyond Flexibility
★Healthy food that tastes good too
★A Beginners Guide to Sun Salutations
★Can Eating Bananas Help You Lose Weight?
★5 DIY masks for your various hair concerns
★3 Must Try Face Yoga Exercises For Glowing Face
★23 foods that contain NO calories
★Those who consume fruit and vegetables have a 40% lower risk of an incurable lung disease
★Best and Worst Drinks for Weight Loss
★5 foods for healthy skin
★5 Reasons Cheese is Actually Good For Your Health
★10 Surprising Things That Can Cause You to Lose Muscle
★What dangers are hidden in your pillow?
★This is how many calories your tea and coffee habit is adding to your diet EVERY DAY
★Is This the Best Diet for Post-Menopausal Women?
★Natural and healthy effects of Aloe Vera!
★Everyday Medications You Should Never Take When You Exercise
★Why You Probably Shouldnt Take Diet Advice from Your CrossFit Coach
★How to Lose Weight Fast: 3 Simple Steps, Based on Science
★The Best Breakfast Foods for Weight Loss
★Research reveals surprising health benefits of chewing your food
★Sari saga from Bengal
★Top 10 Unknown Beauty Tips and Tricks
★How your make-up bag could wreck your health
★8 Practical Tips to Lose Weight Without Dieting
★7 Healthy Hacks for Your Pumpkin Spice Latte
★Skin tone linked to fruit and vegetable consumption
★The tangy taste of Banaras
★Top Natural Body Care Tips for Women
★Yoga Poses for People with Less Flexible Body
★4 Superfoods for a Healthy Looking Skin
★Healthiest Foods For Women
★How you should wash your face?
★Face Scrubs and Face Packs
★Tips to Even your Skin Tone Naturally
★5 Exercises to Reduce Belly Fat