I think at first it was a case of folliculitis(infection and inflammation of hair follicles ) but I am afraid it's converting itself to cellulitis( infection of the soft tissues of the skin) so it's better to see a doctor if not possible to visit A&E.
For the time being I would suggest to apply Bacitracin
ointment on the lesions two times a day and Tablet Advil
400mg three times a day after your main meals.
A visit to a doctor is necessary because oral anti biotics are indicated in such cases apart from anti inflammatory and topical anti biotics. Try not to pick or squeeze them as there is a chance of cross infection.
I hope you ll find this answer helpful.