How to roughen up head?

I got circised 13-14 days ago. (medical reasons). My stiches are nearly out, or whats left of them. I'd say 4-5 more soaks in a bath should do it. Anyway, my head after i got circised has been very sensetive. My mom says because it was encased in my tight forskin for 15 years and i need to get used to it. I cannot wear boxer shorts and walk normally without it rubbing itself all over the place. I have not gotten a good night of sleep since the operation because it hurts to lay on my stomach. I tried masturbating a couple of days ago. When the head is erected, it doesnt hurt, but when i am not , it is painfull, it feels like needles. I start School on Wednesday. If there is no way the sensetivity of my head will subside by the time school starts, then at least tell me how i can go out in public and wear clothes and walk without it flapping all over the place and hurting. And Tighti Whites are out of the question. Anyother way, if I just smother it in vasaline and put some kind of gauze on it, will that help? Please help me, I want to go to school on the first day like nothing ever happened.