Pressure in the forehead area is a common symptom of a tension headache, according to UCSF Medical Center. Poor posture, emotional stress and eyestrain can trigger tension headaches. Additional symptoms of a tension headache include scalp tenderness and neck pain.
Sinus inflammation can also trigger pressure across the forehead, according to Ear, Nose and Throat Associates of Corpus Christi. When the sinuses become inflamed due to colds, allergies or changes in air pressure, the nasal passages swell and secrete excess mucus. In addition to forehead pressure, sinus inflammation and swelling can also cause upper tooth pain and pain behind the eyes.Learn More
A sore red bump under the armpit is a common symptom of an ingrown hair, a condition that occurs when hairs curl around and grow backwards into the skin, according to WebMD. Ingrown hairs can also grow sideways in hair follicles that have become clogged with dead skin.Full Answer >
One possible cause for small bumps on the forehead is a condition called perioral dermatitis, according to AARP. Perioral Dermatitis is a rash that typically affects the skin around the mouth, but bumps may also sometimes occur on the forehead and chin. Another possibility is rosacea, says WebMD.Full Answer >
Pressure is directly proportional to solubility; an increase in pressure also increases solubility. Conversely, a decrease in pressure also reduces solubility.Full Answer >
Pressure and density are directly in compressible materials. As the isostatic pressure applied on a material increases, the material density increases as the atoms or molecules of the material are pushed more closely together.Full Answer >