Donna - my surgeon said that lasers should probably wait for now due to the hypersensitivity that I'm still experiencing. However, once the sensitivity resolves, there will be no problem with lasers. All other treatments are ok.
On a side note, not sure if you've heard of this before but you should look into taking BioSil supplements. You can get them from GNC. My hairstylist actually told me about it because my hair thinned a little after surgery. It helps grow collagen and she had several clients who took it after major surgeries and they swore by it. I noticed when I picked up the bottle from GNC that it's also great for nails and skin. It claims to improve skin elasticity, grown thicker hair and strengthen nails. The lady working at GNC (nutritional supplement store) said it works well!