<s>[INST] Went to ER today with my boyfriend. He has huge hard lump that's bright red on lower right side close to spine. It's hurts him badly. Dr tried to drain it with nothing coming out at all. Told us to come back on Wednesday to check it. Gave him 2 antibiotics. What could it be??? [/INST] HI. This can be a cellulitis , that why nothing came out.Continue antibiotics and anti-inflammatory medicines. Get an ultrasound done to confirm it is ripe enough to put in a needle. </s>