1 Poison ivy, poison oak, and poison sumac are plants than can cause an itchy rash upon contact. 2  A substance called urushiol, found in these plants, causes the rash. 3  The rash is not contagious.  The rash usually disappears in one to three weeks.
Common factors that can cause clogged ears are wax buildup, air flow blockage to the Eustachian tubes, pressure differences in the middle ear, and cold and sinus problems. Clogged ears can affect people of all ages, but is most common among children, especially when they have colds.
Often, the pressure in the ears is so intense it can cause you to have problems with your balance. Tightness in the ear can occur for a number of different reasons, including sinus infections, allergies, etc.However, there are specific correlations made between the pressure in the ears and neck tension.ften muscles and nerves work hand in hand, therefore if you have any tension knots on your neck or shoulders this can aggravate blood flow. It can also lead to discomfort and extra tension in the neck and shoulders. Resource: Plugged Ears/Clogged Ears.