hives

it’s hard to see in the picture but there’s these puffy bumps, they are itching a lot and it keeps getting bigger (the blue circle was from like 45 minutes ago) there’s a lot more of them popping up but there a lot littler then this. i took a new medication 2 days ago but i think i would’ve got hives sooner if it was from that but i also think i could have some type of std, don’t know if that would cause this or not but i haven’t really tried anything new or used any new soaps the only thing i could think of is we tried a new easter egg dye and i got it all over my hands, but i’ve never had any problems before? help please!