After 10 days of taking Doxycycline Hyclate for Lyme Disease, I n...

After 10 days of taking Doxycycline Hyclate for Lyme Disease, I noticed a rash on both my forearms. I learned that this a side effect due to increased sensitivity to sun. Within a few more days it looked like a bad sunburn and started to itch intensely. I found that mixing a paste of good old baking soda and water and putting it on my arms stopped the itch almost immediately. I'm taking the last pill today (hooray) and am assuming that the rash will fade away. If anybody else has had this, I'd like to know how long it takes for the rash to disappear once the antibiotic is out of one's system.