I Woke Up About 4 Days Ago With What I

I woke up about 4 days ago with what I thought was a mosquito bite but every day I have more bumps and its spread all over my body. They are initially colorless and small. They also itch like crazy! They turn pink when I scratch them hard enough. I took some Benadryl last night and it helped me sleep. However here I am the next day with more bumps.