It will be bigger than a mans prick and smaller than a horses prick." A late fourteenth century account of the life of Saint Óláfr from the Flateyjarbók describes a pagan ritual which centered around a preserved horses penis used as a cult artifact which members of the cult would pass around in a circle, making up verses in praise of it, encouraging it and the other members of the group to behave in sexually suggestive ways.During the Renaissance, some men in Europe began to wear codpieces, which accentuated their genitals. There is no direct evidence that it was necessarily worn to enhance the apparent size of the wearers penis, but larger codpieces were seen as more fashionable. Contemporary perceptions
Male self-perception
Males may quite easily underestimate the size of their own penis relative to those of others. A survey by sexologists showed that many men who believed that their penis was of inadequate size had average-sized penises. Another study found sex education of standard penile measurements to be helpful and relieving for patients concerned about small penis size, most of whom had incorrect beliefs of what is considered medically normal. The study found that almost all of their patients that were concerned about their penis size overestimated the average penis size. The perception of having a large penis is often linked to higher self-esteem.
Photodermatitis, sometimes referred to as sun poisoning or photoallergy, is a form of allergic contact dermatitis in which the allergen must be activated by light to sensitize the allergic response, and to cause a rash or other systemic effects on subsequent exposure. The second and subsequent exposures produce photoallergic skin conditions which are often eczematous. It is distinct from sunburn. Signs and symptoms
Photodermatitis may result in swelling, difficulty breathing, a burning sensation, a red itchy rash sometimes resembling small blisters, and peeling of the skin. Nausea may also occur. There may also be blotches where the itching may persist for long periods of time. In these areas an unsightly orange to brown tint may form, usually near or on the face. Causes
Many medications and conditions can cause sun sensitivity, including:

Sulfa used in some drugs, among them some antibiotics, diuretics, COX-2 inhibitors, and diabetes drugs. Psoralens, coal tars, photo-active dyes (eosin, acridine orange)
Musk ambrette, methylcoumarin, lemon oil (may be present in fragrances)
PABA (found in sunscreens)
Oxybenzone (UVA and UVB chemical blocker also in sunscreens) 
Salicylanilide (found in industrial cleaners)
St Johns Wort
Hexachlorophene (found in some prescription antibacterial soaps)
Tetracycline antibiotics (e.g., tetracycline, doxycycline, minocycline)
Benzoyl peroxide
Retinoids (e.g., isotretinoin)
Some NSAIDs (e.g., ibuprofen, naproxen sodium)
Fluoroquinolone antibiotic: Sparfloxacin in 2% of cases
Amiodarone, used to treat atrial fibrillation
PellagraPhotodermatitis can also be caused by plants such as Ammi majus, parsnip, giant hogweed (Heracleum mantegazzianum), common rue (Ruta graveolens), and Dictamnus, a genus of flowering plants in the family Rutaceae with a single species Dictamnus albus, commonly called the burning bush.