Atopic dermatitis is a long-term (chronic) skin disorder that involves scaly and itchy rashes. Atopic dermatitis is due to a hypersensitivity reaction (similar to an allergy) in the skin, which leads to long-term swelling and redness (inflammation) of the skin. People with atopic dermititis may lack certain proteins in the skin, which leads to greater sensitivity.
The increase in ultraviolet (UV) radiation on the surface of the earth due to depletion of the stratospheric ozone layer has recently fuelled a renewed interest in studies related to ascertaining various deleterious effects of UV-radiation on living organisms and possible remedial measures. Radiation is one of the most effective and carcinogenic exogenous agents, that can interact directly with DNA or indirectly through generation of free radicals or reactive oxygen species (ROS), thus inducing DNA damage or altering the genomic [...]
Chronic sinusitis is a common condition in which the cavities around nasal passages (sinuses) become inflamed and swollen. Also known as chronic rhinosinusitis, this condition interferes with drainage and causes mucus to build up. If you have chronic sinusitis, it may be difficult to breathe through your nose. The area around your eyes and face may feel swollen, and you may have throbbing facial pain or a headache.
Migraine is a neurological syndrome characterized by altered bodily perceptions, severe headaches, and nausea. Migraine is a common illness, with a life-time prevalence of about 14% worldwide (9% in men, 20% in women), and is more commonly observed in Europe (15%) and North America (13%).