Suggest Treatment For Swollen Lip After Oral Sex

Ok I was with a woman recently...and performed a small amount of oral...my lower left bottom lip swelled up within an hou after so thinking I contracted something...i we.t to the er and was told it was most likey ab allergic reactin rather than an std...so now the swelling is go.e but tjete is some redness and peeling...and even what appears to be a little white blister forming I think...i thought I was in the clear after the er visit there is no pain...it looks improved...could it just look strange as a result of having swelled so much?