Started Doxy 4 days ago. Supposed to have been taking 100mg twice...

Started Doxy 4 days ago. Supposed to have been taking 100mg twice a day, did it first couple days then forgot. Started back on it today. Almost immediately after taking the dose I noticed my face was itchy. I have tons of tiny bumps all over my right cheek up into my eye area and down the jaw area as well. Other than this I feel bloated as hell, I don't know if it's related or not. The rest of my skin feels itchy on and off but I don't notice any bumps anywhere other than the right side of my face (so weird). Any thoughts on why I might be having this reaction??