Hi and welcome to HCM
You could apply over the counter antiseptics for a couple of days after bath, to see if the lesion gets any better. You need to consult a dermatologist
for systemic antibiotics if the number of lesions increases.
Usually such minor infections are self limiting and subside in 7-10 days. Avoid touching the area with bare fingers to avoid any infection. The small scars
will also heal on their own without any special treatment.
I do hope that you have found something helpful and informative and I will be glad to answer any further query.