I have an infected skin tag near my anus, it s extremely pain ful , doctor has given flucloxacillin 1000mg 2x day 2 days ago and infection is still feeling worse, is this normal, should I get second opinion. Is the dose right, can I take 4 x day , I can not sit, it hurts so much, skin tag is size of a marble with a lump under it which is hard, hot and red under skin like a golf ball, what to do?