In the case of chemically treated hair the hair may be immediately weak after chemically straightened. So it is better to avoid any head massage or anything two to three days after the chemical treatment. Regarding growing hair in the hairline one important thing to avoid is tight combing. This causes called as traction alopecia. In case of traction alopecia the hair goes up from the hair line and slowly starts receding and this happens over a period of many years. So to improve the hair on the hairline we can use lotions like minoxidil to stimulate and thicken the hair in the hairline.
