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. 2026 Sep 29;24:955–964. doi: 10.3290/j.ohpd.c_2827

Table 4.

Local clinical symptoms (side effect) after 5-ALA-PDT

Clinical symptoms (side effects)

Cases (n)

Time to evoke a local response

Time for local response to subside

Pain

25

1-3 h after surgery

3-5 days after surgery

Ulcers

25

24-48 h after surgery

7-10 days after surgery

Swelling

4

24-48 h after surgery

3-5 days after surgery

No response

2