The healing time for Achilles tendonitis is shorter, taking several days to 6 weeks. For tendinosis, the expected healing time is more variable, taking upwards of 6 months to heal.
If you notice swelling, redness, or warmth through your achilles it is important to act right away to prevent a tendinosis. Perform hot/cold contrast, rest, and start gentle stretching exercises. If it persists don’t wait to call you physiotherapist. The longer you wait, the longer the healing time.