i was given this for a sinus infection. the first day i had red ...

i was given this for a sinus infection. the first day i had red bumps all over my legs. i have really bad allergies so i passed it off. the second day i had the bumps, felt a little disoriented and dizzy, and i felt pain in all my joints. by the third day i had a fever of 104 degrees, all the other symptoms and all i wanted to do was sleep. my fiance gave me Advil and it brought my fever down to 102 but then went back up to 103. he took the prescription away from me. he got worried and took me to urgent care where after waiting 5 hours to see someone they said i had the flu-drink lots and sleep. oh and maybe its a reaction to the medication. my temperature went down to normal day after i stopped taking it, my joints and swelling are better, i still have the bumps on my legs but i have another appointment with my regular doctor later this morning so i'll see what he says. my brother called earlier today and as soon as i told him the name of the medication he said "oh, so you have spots all over?" so i guess it's not just me?