Most probably you are having an allergic reaction
to some bites ,probably mosquito or any other inscects that can get to your bed..
Treatment is dependant upon the type and severity of the reaction but may involve
lotion - for local application...
Antihistamines - May minimise itching and decrease response in mild to moderate reactions, especially with primarily skin involvement
- used in short courses for moderate allergic reactions especially with asthma symptoms or skin conditions
If the itching is increasing and more eruptions are appearing you should report to local hospital because you can have anaphylaxis
Anaphylaxis is a severe life threatening allergic response
that may occur following an insect sting.