Hello tgod and welcome to dermatalk. Hopefully you can get the answers you are looking for just please be patient as a lot of our regular staff are busy professional people.
I cannot offer you any advice without considering it first but I would like to put your mind at rest somewhat by saying the need to shave everyday, sometimes twice is common. Many men get what is called a 'five o'clock shadow'. So don't let this get you down.
Do you use a moisturiser in your daily routine? You say you use a sunscreen which is good but it doesn't give the skin the nutrients it needs. Also do you use an exfoliator? This used once a week, can help remove old dead skin and promote new skin growth which again will help the condition of your skin over time. We can offer advice on good items to use if this is something you need in your routine.
I also know that aloe vera is good to apply to damaged skin as it has healing properties but I personally don't know about using this on a shaving rash although I can't see it causing any problems. Hopefully someone can confirm or correct me.
Keep checking by and it may be worth using our search feature and search for shaving rash to see if any posts have been made before and advice given.