What is sun allergy? What causes it and how can it be recognized?

Sun allergy is a term often used to describe a number of conditions in which an itchy red rash occurs on skin that has been exposed to sunlight. The most common form of sun allergy is polymorphic light eruption, also known as sun poisoning. Some people have a hereditary type of sun allergy. Others develop signs and symptoms only when triggered by another factor — such as a medication or skin exposure to plants such as wild parsnip or limes. Mild cases of sun allergy may clear up without treatment. More-severe cases may be treated with steroid creams or pills. People who have a severe sun allergy may need to take preventive measures and wear sun-protective clothing.

 

Are there conditions under which it is better to avoid the sun?

People who have a severe sun allergy may need to take preventive measures and wear sun-protective clothing. Additionally, some drugs, plants and also over-the counter medications may cause photosensitivity. Photosensitivity, is an abnormal reaction of the skin caused by UV rays.

 

After which surgical procedures is sun exposure prohibited?

Scars need extra care due to scar tissue being extremely sensitive. Due to the sensitivity of scars, they are more susceptible to damage from harmful UVA/UVB rays. Sun exposure can cause hyperpigmentation (darkening of the skin) hypopigmentation (lightening of the skin), as well as cause blisters or scars to thicken which can make it even more difficult to treat the scar.

 

Are there other situations in which it is better to avoid the sun?

Sun’s UV rays can cause damage to skin, causing sunspots, rapid premature aging, hyperpigmentation, can trigger skin disorders like eczema and psoriasis and can also cause skin cancer. The most efficient way to lower the risk of sun damage is to stay out of the sun during the peak hours of 10am-2pm. Another efficient way to greatly lower the risk of sun damage is to wear sunscreen.