So, my doctor prescribed me doxycycline for my tick bite. She said based on the pictures it was a common tick and not to worry. No head parts buried underneath the skin. However, she want me to take doxycycline after 2 1/2 days of being bitten as a preventative measure. I took the pills around 11:00 am. It was two 100mg pills. Around 12 I threw up and it was practically water/foam. The second throw up was clear liquid and maybe the size of a small pancake on the floor. No solids. Should I be ok? Do I need to redo the doxycycline? I didn't see any solids as I said before it was all clear and foamy and barely anything. Should my body absorb some regardless?