A resident of Novosibirsk experienced severe head swelling after… (голова · сильный · отечь)

A resident of Novosibirsk experienced severe head swelling after riding a snowmobile.

Consensus

The man is a resident of Novosibirsk.
He spent approximately two hours on a stand-up paddleboard in the sun near Berdsk.
He did not wear head protection during the activity.
After the outing, he experienced swelling and discomfort in his head.
His condition worsened over time, with significant swelling around the temples, back of the head, and above the eyebrows.
He was unable to open one eye fully and required emergency medical assistance.
He sought treatment from multiple doctors and eventually responded positively to an antihistamine injection.

The man had no prior history of allergies, which he attributed to the incident being caused by sun exposure alone. — riamo
He applied sunscreen cream before the activity and developed a severe burn on his scalp. — riamo
The man used panthenol after noticing itching, which may have contributed to the reaction by forming a film on the skin. — vesti
A dermatologist diagnosed him with photodermatitis and suggested UV exposure as a likely cause. — vesti
The man had been bitten by ticks twice in the past month and took two courses of antibiotics, which may have weakened his immune system. — vesti