Skin on the tip of my penis is strating to peel. it i think this might be due to tight boxers. will it heal and how long will it take to heal?

See doctor: May be simple abrasion but may also be infection. Eczema can also occur there, from allergic contact (like metal, detergent, fabric softener) skin tends to heal quickly; infection would need to be treated; for eczema, aloe vera gel/vit e cream doc can examine & give further options. If sexually active, use condom. If partner has any lesions, tell doc about those (e.g. Warts, yeast 'infection').