Its all about preparation and patience. I used to suffer with shaving rash also know as razor burn and then on regrowth I would suffer the ingrowing hair!
Electric razors are far worse. Good products are a must!
I will try find a guide on shaving to link, but as said preparation of the skin is key. Softening the skin/hair before shaving makes a HUGE difference.
Here:
Before shaving, gently scrub your face with a loofah or facial scrub lotion. This scrub helps remove dead skin and bring out ingrown hairs and reduces razor burn rashes.
Shave after taking a shower or after washing your face in warm water. Warm water and steam help soften skin and facial hair and will open up your pores. Wait about 20 minutes after getting up before shaving, as this will allow bodily fluids that have welled in your face during the night to disperse. Also, it is good to shave after exercising rather than before so that the sweat does not irritate the freshly-shaved skin.
Use new, sharp razor blades, and be sure to discard them before they become blunt. If using an electric shaver, be sure to clean the blades regularly and to keep them free of hairs. Wet the skin and lather the entire area to be shaved with a quality shaving cream or gel. Make sure you've let the cream or gel sit on the skin for a few minutes before shaving; this will increase the softness of the facial hair and will reduce the skin irritation. It's important to use a cream or gel specifically designed for shaving, as ordinary soap will dry out skin and increase the likelihood of irritation.
ShavingShave with the grain of the hair in short, deliberate strokes. Shaving against the grain increases the odds of ingrown hairs, irritation, and inflamed skin. Long strokes often cause one to press down too hard on the skin, increasing razor contact and making razor burn more likely.
Rinse the blade after each stroke. If the razor is full of whiskers, it won’t get a close shave, and irritation will be more likely.
Rinse your blade under cold water before you begin to shave and after every few swipes. This removes the accumulated shaving cream, whiskers, and skin goop. For a really close shave, re-moisteurise the section you just shaved, by spreading a thin layer of lather from another area of your face, and then swiping that area again. Keep everything moist
Wash your face well in cold water after you've completed shaving to remove all traces of shaving cream or foam. This helps close pores and lessen skin irritation.
Apply an alcohol, fragrance and oil free facial moisturizer or aftershave lotion to help keep the skin soft and reduce the presence of razor burn. Various skin types respond differently to the plethora of gels, lotions, ointments, balms, and aftershave treatments available. Research the different aftershave applications to find the alternative that best matches your skin type. Aloe Vera with or without a moisturizer really seems to work well for many people