Cold sores are the possiblity,apart from impetigo.
Hello,
It sounds like summer sores or impetigo. Summer sores is another name for impetigo.It is a superficial bacterial skin infection.Primarily caused by Staphylococcus aureus, and sometimes by Streptococcus pyogenes.Topical and oral antibiotics is the treatment of choice.
I hope it helps.Take care and pls do keep me posted on how you are doing or if you have any additional doubts.Kind regards.