Started with Azithromycin for cough, immediately broke out into blisters on hands,feet,back and finger tips. Went to PCP who issued methylprednisolone and amoxicillian. Four days later returned to PCP, who referred me to emergency. Now have blisters and oozing finger tips, some fingers turning purplish black.. Bottoms of feet have blisters and have sever blisters popping up on body..