Mosquito bite
Most people are sensitive to mosquito bites. A mosquito bite may develop a raised nettle rash lump which clears up of its own in a couple of hours. In a delayed reaction, an itchy bump may emerge in a couple of hours and last for several days. Serious allergic reactions to mosquito bites are rare. Finnish mosquitos may spread diseases, e.g. tularaemia. Use mosquito repellents to protect yourself against mosquitos.
Black fly and midge bites
The black fly bite leaves a small haematoma with a red and slightly swollen area developing around it. The midge bite, a couple of millimetres in size, may sting and burn painfully. Black flies and midges can easily bite also underneath clothing. Hypersensitivity to the bites is very rare. Black flies can spread tularaemia.
Horse fly bite
A horsefly bites often cause a large swollen lump with a watery spot in the middle of it. The bite may cause allergic reactions like hives (urticaria) and extensive swelling. Also serious allergic reactions are possible. Horse flies can spread tularaemia.
Deer fly bites
Towards the end of summer and in autumn, deer flies populate the areas where elks herd. Deer flies aim for the scalp and underneath clothing. If you are sensitive to deer fly bites, you may develop small red lumps which may take weeks to heal. Deer flies do not spread disease to humans.
Wasp, bee and bumblebee bites
Wasp and bee stings leave a painful red and swollen area on the skin as a reaction to poison. If you are allergic to wasp or bee stings, you may experience more severe swelling and lumps similar to nettle rash. Skin symptoms may spread widely on the skin if your reaction is severe.
Wasp and bee stings may also lead to a life-threatening anaphylactic reaction with low blood pressure, nausea and in the worst case even loss of consciousness. You may become sensitive to wasp and bee stings so that the reaction to new stings may be unpredictable. People allergic to wasps are not usually allergic to bee poison and vice versa. Allergic reactions to bumblebee stings are very rare. Mosquito repellents do not provide protection against wasps or bees.