Hello.
Thank you for asking at HCM.
I went through your history and would like to make following suggestions to you:
1. Were I treating you, I would prescribe you regular 
montelukast and an antihistamine like cetirizine/
levocetirizine to control your symptoms.
2. If you have frequent bleeding from nose, I would suggest you to consult an 
ENT specialist who will examine your nose from inside to identify the cause.
3. I would suggest you to get allergy testing done for house dust mites by skin prick testing or specific IgE levels in blood. This will confirm house dust 
mite allergy.
4. Following measures are usually suggested for house dust mite allergy:
a. Washing bedding covers, pillow covers, etc every week in hot water (>130 F) and dry them in sunlight thereafter. (Heat kills dust mites)
b. Reduce humidity in rooms to around 50% of ambient humidity in environment by using dehumidifiers or air conditioners. (dust mites need humidity for growth)
c. Removal of carpets, thick curtains, upholstered furniture, etc from bedroom. (these are reservoirs of dust mites)
5. If allergy testing confirms house dust mite allergy, I would suggest you allergen specific 
immunotherapy for house dust mite 
proteins which will improve your immune system and will gradually reduce your symptoms of dust mite allergy. However, for that, I would suggest you to consult allergists-immunologists for detailed allergy evaluation which is necessary.
Hope above suggestions will be helpful to you.
Should you have any further query, please feel free to ask at HCM.
Wish you the best of the health.
Thank you & Regards.